9 best concrete grinding machines

Product description

This package carries: 1 Piece of (110V, 500-4500 RPM adjustable, 1000W, 60 HZ, water hose, carbon brush) New Version Wet Variable Speed Polisher. Polisher color is Random: Red or Blue. This polisher has no GFCI circuit breaker, our advice is plug this into a GFCI normally located in bathrooms and kitchens and using a extension cord from there). And 9 Pieces of 4" / 4 Inch Diamond Polishing Pad: 2 X Grit 50 100, 1 X Grit 200 400 800 1500 3000, And 1 X 4" / 4 Inch Aluminum Velcro backer/Pad Holder. And 1 X 4 1/2" / 115mm Diamond Tuck Point Blade (segment thickness 1/4") removal of mortar joints in brick, block or stone of exterior building surfaces, interior floors and walls, giving you the freedom to repair and resurface almost any type of concrete and masonry. And 1 Piece of 4" Diamond Turbo grinding cup wheel for stone concrete travetine quartz grinding. Details of this polisher: (1000-4500RPM adjustable, 110V, 1000W, 5/8"-11 Thread spindle, Water Valve and hose, Extra Carbon Brush Set, Splash Guard.)

• 1 Piece of (110V, 500-4500 RPM adjustable, 1000W, 60 HZ, water hose, carbon brush) New Version Wet Variable Speed Polisher.
• 9 Pieces of 4" / 4 Inch Diamond Polishing Pad: 2 X Grit 50 100, 1 X Grit 200 400 800 1500 3000, And 1 X 4" / 4 Inch Aluminum Velcro backer/Pad Holder.
• 1 X 4 1/2" / 115mm Diamond Tuck Point Blade (segment thickness 1/4") removal of mortar joints in brick, block or stone of exterior building surfaces, interior floors and walls, giving you the freedom to repair and resurface almost any type of concrete and masonry.
• 1 Piece of 4" Diamond Turbo grinding cup wheel for stone concrete travetine quartz grinding.

Product description

The Black & Decker BDEG400 4-1/2" 6 Amp Angle Grinder is ideal for sharpening, cutting, grinding, removing rust and surface preparation. This grinder features a metal gear case for durability and longer life. It offers a 3-position side handle that provides added comfort and control for use with various materials and angles. It also has a spindle lock for easy accessory changes. Operates at 10,000 rpm, with a spindle size range of 5/8" - 11 ". Includes: 4-1/2" Small angle grinder, Metal grinding wheel, Spanner wrench .

• Metal gear case for durability and longer life
• 3 Position side handle provides added comfort and control
• Spindle lock for easy accessory changes
• Included Components: 4-1/2" Small angle grinder, Metal grinding wheel, Spanner wrench, Wheel Guard
• Narrow body for comfortable grip

User questions & answers

Question:	I'm confused. I see some people saying to use 7/8wheels and some say 5/8.Which one is it
Answer:	No , these are for tools with 6mm or 1/4" chucks. The dremel 8200 has a 3mm or 1/8" chuck.
Question:	Can this be used with a cut off wheel also
Answer:	If u want to sculpt wood you can depending on the tool u use with them. When used with pneumatic tools, which I think is recommended, they are aggressive and may be hard to control.
Question:	Can this item cut through a metal bolt? If so, what blade is recommended? Thanks in advance
Answer:	Only if the tool has a 1/4" shank. The dremel tools I have seen have a 1/8" shank.
Question:	What size shaft ? 5/8" or
Answer:	It's not dishwasher safe, so it includes a cleaning brush, even if it doesn't help much. I prefer the grinder kit I bought from other brands, has a brush with wooden handle for better cleaning. Link : https://www.amazon.com/dp/B07RWYW74H

Product description

This 5 in. Brushless Surfacing Grinder Kit with Kickback Brake is equipped with a brushless motor to eliminate brush replacements, reducing downtime. It also features a brake that stops the wheel quickly. PERFORM & PROTECT™ features on this tool include Kickback Brake and E-CLUTCH® to help enhance user protection without impacting performance.

• Brushless motor requires no brush changes
• The Electronic kickback brake engages when a pinch, stall, or bind-up event is sensed, engaging with maximum force to quickly stop the wheel, reduce the movement of the grinder, And shut the motor off
• POWER-LOSS RESET® - The ON/OFF trigger switch has a no-volt release function. In the event of a power outage or other unexpected shut down, the trigger switch will need to be cycled (turned off and then on) to restart tool.
• Variable speed functionality lets the user change wheel speed for applications as needed
• DWE46005 bail handle (included) offers multiple positions for user preferred configuration

User questions & answers

Question:	Can you use it for buffing floor
Answer:	No it’s brown and the best self tanner I’ve gotten. I recommend applying with tanning mitt so you don’t get brown hands
Question:	Can the dust shroud be removed so the grinder can be used with a cutting wheel
Answer:	This is a gel application. U use gloves to rub in. I prefer the spray and mit its way easier to apply and spreads even compared to the gel. The spray i personally think goes on darker. Depends on how well u keep it up for last such as exfoliating before u apply and moisturizing after.
Question:	Does this grinder come with the dust shroud included and cutting blade
Answer:	It includes 1 set of lattes/vinyl gloves
Question:	Do you have to put a washer before attaching the diamond cup
Answer:	Expired product turns green.. my guess id that you did not recieve a fresh bottle :-/

Product description

The SECCO variable speed wet polisher is a low rpm (1000 - 4000) water feed angle grinder. The use of this tool is required when polishing with diamond tools which require the use of water and low RPM's. SECCO has been providing quality tools to concrete and granite fabrication professionals for years. This unit is equipped with an 800 watt 8 amp motor and features a variable speed dial located at the rear of the grinder. The RPM range of this unit is 1000- 4000 rpm. The polisher has a quick connect brass coupling and is supplied with all necessary hoses and connectors to hook up a standard garden hose. The arbor is 5/8-11 UNC thread and is compatible with all 5/8 threaded and non threaded tools. Other features include: * Integrated GFCI (operator protector circuit breaker) * 360 degree adjustable 4" safety guard with integrated rubber splash skirt. * Aluminum bail handle (D handle) (A must have for wet polishing and grinding) * Wrench assortment * Arbor nut assortment (for attaching non threaded tools to the grinder) * Extra carbon brushes (Wearable replacement motor component) * Water adjustment valve * 12' heavy duty contractors grade cord (most grinders have 6') * Double insulated * Water on/off valve with quick connect * All water lines and garden hose adapters * Brass water diffuser integrated into arbor * DVS dust and water extraction shroud 4" granite and stone polishing pad set included! Always wear a rubber glove to operate this grinder/polisher to prevent electric shock/tingling.

• Hardin Variable Speed Wet Polisher
• 4 Inch Premium Granite and Stone Diamond Polishing Pad Set
• 1 Each 50, 100, 200, 400, 800, 1500, and 3000 grit
• 5/8 - 11 Threaded 4 Inch Rigid Hook and Loop Backer Pad
• Integrated GFCI (operator protector circuit breaker)

User questions & answers

Question:	can a shop vac be hooked up to this tool to make less of a mess
Answer:	Yes.
Question:	Can this unit and pads be used to polish concrete countertops
Answer:	Yes, it will work perfectly.
Question:	Can this polisher be used as a hand held stone router
Answer:	I think it will work on any washer.
Question:	Mine didn't come with an owner's manual. It came with a few pgs of instructions, but nothing that described how to put the unit together
Answer:	The hose is 20 feet long as clearly described in the description. Both the 15 foot and 25 foot answers from 2014 are incorrect.

Product description

The Stadea SWP112K Concrete Countertop Polishing Tools Kit for Concrete Countertop Polishing. The kit has 5" DTM+ Stadea Wet polisher, 4" Concrete Grinding Diamond Cup Wheel, 4" diamond polishing pads for concrete polishing 7 pads set and 4" rigid backing pad.



Designed For Excellence

Features robust DTM+ Motor Gear System to ensure the optimal speed and power needed for stone wet or dry polishing, fabrication.

Head Heavy Polisher Design together with out of core back-handle design minimizes back hand work fatigue and increase pressure on polishing surface of granite concrete.

Improved Grip-Size Out of Core Ergonomic Back Handle design minimizes back hand fatigue during usage. New comfortable back hand grip from classic oversize main body hand-grip across air vents. It eliminates air-vent hand blockage improving motor performance and durability.



Electrical Safety

GFCI - Cuts off electricity on hazardous electrical shock

Double Insulation - Enhanced electrical safety



Ease Of Use

Under Water Feed – Minimizes polishing interference

Water Pressure Control & Water Stopper

In-built water quick-connect from water hose

Three-hole water sprayer for even water distribution to unclogs cut particles

Water Splash Guard - Splash guard to control water spill, Vacuum connector minimizes dust during dry polishing

Arbor Lock Button - For tool free release of accesories from the polisher arbor

Power Lock Switch - One push lock for effortless continuous run

Variable Speed Dial – Adjusts speed to specific application for specific stone wet or dry polishing

Ergonomic designed handle – For comfortable grip and best polishing performance

Dual Front Handle – Top D-Handle for stone fabrication, General purpose Side handle

Ambidextrous Side Handle - left right handed use

Long Power Cord, Long Water Line – For easy access to long countertops

• Stadea Concrete Countertop Polishing Tools Package kit with Wet polisher, 4" diamond Concrete Grinding Cup Wheel and 4" Concrete Polishing Pads set, 4" rigid Aluminium hook loop backing pad set. 5” Stone Wet Polisher with DTM+ motor gear system features enhanced power and optimal speed required for stone concrete wet polishing or dry polishing; Variable dial control to match speed of either stone polishing process, Minimum RPM: 700; Maximum RPM: 3000
• Kit includes Stadea Series Standard J Wet 4" diamond concrete polishing pads set of 7 pads designed for concrete polishing. Also inlcudes 4" semi flexible rubber backing pad with 5/8" 11 thread. 7 Pieces concrete polishing pads are one each for grits 50, 100, 200, 400, 800, 1500, 3000. It also includes 4" double row diamond cup grinding wheel with 5/8" 11 thread for concrete countertop grinding and shaping
• Ergonomic grip-size, long, out of core, soft back handle design transfers minimal polisher weight to back handle minimizing back hand fatigue and this along with the innovative head heavy polisher design together transfers machine weight on the stone concrete polishing surface to increase polishing pressure naturally aiding enhanced polishing performance, and minimizes back hand fatigue; Out of body back handle eliminates air vent hand blockage increasing motor performance and durability
• In-built water quick-connect to standard water hose, Water pressure control, Water Stopper, Extra-long water line, under-polisher water flow line does not interfere with polisher handling during usage, three-hole 120 degree water hole for even water distribution
• Arbor lock for easy release of tool accessories, Soft-start, Polisher one-push power start & lock switch for ease of use, splash guard with vacuum connector for water and dust control, Dual handle for multiple use cases, Top D-handle must for stone polishing, ambidextrous side handle for easy multi-purpose use, ergonomic back handle. Class-A GFCI for enhanced electrical safety to safeguard hazardous electrical shock, Double-insulation motor, Extra-long 12 feet industrial grade electrical cable

Product description

The DEWALT DWE4011 eatures a 7.0 amp AC/DC, 12,000 rpm motor, which was designed for faster material removal and higher overload protection. The One-Touch Guard eliminates the need for a tool to adjust the guard location; No buttons or levers, just turn the guard to position it. This unit has a hex wrench which replaces the spanner wrench (a hex wrench is found in most tool boxes if lost). It also features a quick-change wheel release that allows for tool-free wheel removal without need for a wrench. As an added bonus, the two-position removable side handle provides increased comfort and control. To make this tool more versatile, the 5/8-inch-to-11-inch spindle thread accepts a wide range of 4-1/2-inch accessories. You will enjoy working with this slim, ergonomic body design as it provides increased comfort in extended use applications.

• 7 amp AC/DC, 12,000 rpm motor designed for faster material removal and higher overload protection
• One-Touch guard eliminates the need for a tool to adjust the guard location
• Hex wrench replaces spanner wrench - hex wrench is found in most tool boxes if lost
• Quick-Change wheel release allows tool-free wheel removal without the need for a wrench
• 2-position removable side handle provides increased comfort and control
• Slim, ergonomic body design provides increased comfort in extended use applications
• 5/8"-11 spindle thread accepts a wide range of 4-1/2" accessories

User questions & answers

Question:	What kind of grinding discs does it take
Answer:	I would check the pinion gear in the head. Mine when I bought it had hardly any good grease in it and made noises. After apply a good amount of grease and 1 tablespoon of 90w gear oil runs fantastic.
Question:	Are the brushes replaceable
Answer:	4"
Question:	Do the grinding wheels come with it
Answer:	I rarely even use the wrench. I just use the lock button and grab the wheel and give it a twist
Question:	Does the switch stay on hen you let go or do you hold it while grinding
Answer:	This grinder accepts 7/8 already

Product features

DEWALT DWE4011 4-1/2-Inch Small Angle Grinder

The DEWALT DWE4011 features a 7.0 amp AC/DC, 12,000 rpm motor, which was designed for faster material removal and higher overload protection. The One-Touch Guard eliminates the need for a tool to adjust the guard location; No buttons or levers, just turn the guard to position it. This unit has a hex wrench which replaces the spanner wrench (a hex wrench is found in most tool boxes if lost). It has a low profile, jam-pot gear case which increases durability and allows tool to fit into tight spaces. It also features a quick-change wheel release that allows for tool-free wheel removal without need for a wrench. As an added bonus, the two-position removable side handle provides increased comfort and control. To make this tool more versatile, the 5/8-inch-to-11-inch spindle thread accepts a wide range of 4-1/2-inch accessories. You will enjoy working with this slim, ergonomic body design as it provides increased comfort in extended use applications.

Product description

The Bosch 1375A 4 1/2 In. Angle Grinder features a powerful 6.0 amp motor that produces 11,000 no load rpm, making this compact grinder a powerhouse tool. It was designed for concrete contractors, vehicle fabricators and other professionals who need a compact grinder. With a well designed grip, lock on slide switch, two position side handle and 11,000 no load rpm, this workhorse can get the job done. It is well suited for metal fabrication, concrete restoration, pipe fitting and more. It uses Service Minder brushes that stops the grinder when preventative maintenance is required and epoxy coated field windings, for longer tool life. The lock on slide switch, two position side handle and 3.75 lbs. weight add to user comfort and control.

• Compact: Weighing only 3.75 pounds, the Bosch 1375A Angle Grinder is lightweight, compact, and ideal for metal workers, vehicle fabricators, plumbers and other professionals who use grinders on a daily basis
• Power: The angle grinder features a Powerful 6.0 amp motor to produce 11,000 no load rpm for professional cutting and grinding applications; The Efficient motor was designed with an extremely small field diameter, letting the user grind or cut with ease
• Comfort: The 1375A offers a 2 position side auxiliary handle specifically designed to angle to a natural position for maximum operator comfort; The top handle of the angle grinder is also ergonomically designed
• Convenient: The angle grinder also features Bosch’s Service Minder Brush System to eliminate guesswork and stops the tool when preventative maintenance is required; A 5/8 inches to 11 inch spindle works with a wide array of sizes, mounting the most popular accessories
• Durable: The 1375A angle grinder features an epoxy coated design to protect the tool from abrasive debris; It was also designed with a sealed switch to keep dust and debris from entering the switch mechanism

User questions & answers

Question:	is this product works on 220v
Answer:	Thank you for your question. The 1375A has an adjustment and removable guard. If you have further questions please feel free to contact our Bosch Customer Service Representatives at 1-877-BOSCH-99 (1-877-267-2499).
Question:	Is the safety gaurd removable like on a dewalt
Answer:	"Thank you for your question. The brushes and commutator in your tool have been engineered for many hours of dependable service. To maintain peak efficiency of the motor, we recommend every two to six months the brushes be examined. The tool will stop once the brushes need replaced. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST."
Question:	Description says tool stops when preventative maintenance is required. This is a big problem. How does this work
Answer:	Hi,I bought this item and returned it. It was advertized as having a family of accessories which turned out to be not available. The item was fine as a basic grinder, but if you wanted stuff to add Bosch discontinued support. I bought the Bosch 1810PS 4-1/2-Inch Paddle Switch Grinder with Lock-On Switch instead which had the add on goodies available. I'm really grateful to Amazon because Bosch could care less that they advertized stuff that wasn't any longer available. Many of their tools are excellent, but some are lemons, and the company doesn't honor its claims.Good luck
Question:	Hello, I'm interested where Bosch Angle Grinder in your item is manufactured? i heard they should be made in Germany but can you confirm that? Thanks
Answer:	This product is not brushless. The 2780-20 is.

Product features

Bosch 1375A 4-1/2-Inch Angle Grinder

The Bosch 1375A 4-1/2 In. Angle Grinder features a powerful 6.0-amp motor that generates all-day power. This compact but powerful tool was created for metal workers, vehicle fabricators, plumbers and other professionals who use grinders on a daily basis. With a well-designed grip, lock-on slide switch, two-position side handle and 11,000 no-load rpm, this workhorse can get the job done.

Includes

4-1/2 In. Angle Grinder, Burst-Protection Guard, Auxiliary Handle, Flange Kit, Spanner Wrench, 4-1/ Inc. Abrasive Grinding Wheel.

Tool Longevity and Control

This angle grinder employs Bosch's signature Service Minder Brush System, which shuts off the tool when preventative maintenance is required. The auxiliary handle can be moved into two positions that are specifically designed and angled to a natural position for maximum operator comfort, and the top handle is ergonomically designed.

Compact Power

With the Bosch 1375A angle grinder, Bosch designed a highly efficient motor with an extremely small field diameter, letting the user grind or cut with ease and speed. The tool features a 6.0-amp motor and has an operating speed of 11,000 rpm, but it weighs in at only 3.75 Lbs.

Power On

The grinder features a lock-on side switch for continuous operation, and it's constructed to endure the rigors of all-day use with limited required maintenance. A 5/8 In. to 11 inch spindle works with a wide array of sizes, mounting the most popular accessories and the spindle lock allows for quick wheel changes.

Protection from Metal Debris

The Bosch 1375A Angle Grinder was designed with epoxy-coated field windings protect the tool from abrasive dust and metal debris. It was designed with a sealed switch to inhibit debris from getting into the switch mechanism to extend the tool life. The grinder comes with a burst-protection guard for user security.

Product description

QuickT SWP701K, 5 Inch Powerful 800 W Stone Concrete Wet Polisher Kit designed for Wet Polishing - Concrete Countertop, Stone Countertop, Floor Surface and Floor Edge and other surfaces Wet Polishing Counter Edge Shaping Profiling - Connects to Profiles Wheels to create various type of bullnose - Demi, Ogee, Full Bullnose, Bevel and many more Surface Grinding - Connects to Cup Grinding Wheel, Drum Wheels for Concrete Countertop, Stone Countertop, Sink Edges, Floor Surface and Floor Edges Grinding Faucet Hole Coring - Connects to Hole Saws to Create Round Faucet Hole and General Purpose Holes Dry Polishing - Various Surfaces Dry Grinding and Polishing, and General Purpose Grinding Polishing Ease Of Use & Versatility The wet polisher makes the stone, concrete polishing and fabrication easier and effortless, Converts an unfinished dull surface into a shiny bright countertop - Variable Speed Dial – One finger operated variable speed dial is on the top and in front close proximity to hand grip, Variable speed control matches the stone specific polishing speed for the best shine and faster polishing Soft Start – Soft start for non-jerk comfortable feel and better machine control, ensures work accuracy and perfection Works With 5" & Smaller Tools - Designed to work with 2", 3", 4" and 5" diameter tools. The polisher has 5/8" 11 male arbor to connect tools User-Friendly Water Line Garden Hose Quick Connect - In-built water quick-connect with a standard water hose Flexible Splash Guard - Flexible Splash guard to control water splash, reaches tight corners and adjusts to changing tools height Water Pressure Control & Water Stopper - To adjust water flow and stop water flow right from polisher while polisher runs Three Hole Water Flow - Three-hole water sprayer for even water distribution to unclogs cut particles Power & Control - Powerful Motor - Powerful 800 Watt motor Accessible Controls While in Use - Important controls Variable Dial, Water Control, On-Off

• VARIABLE SPEED WET POLISHER KIT FOR CONCRETE STONE COUNTERTOP - QuickT 5” wet polisher / wet sander / wet grinder kit with powerful 800 Watt motor features optimal wet polisher polishing speed; Designed for concrete countertop granite countertop stone marble tile wet polishing; Variable speed grinder polisher with Variable dial control to match required speed for stone concrete wet polishing or dry polishing.
• READY TO USE COMPLETE KIT FOR CONCRETE STONE COUNTERTOP - Ready to use complete stone granite concrete countertop polishing kit with all required tools, includes set of diamond polishing pads, backing pad for concrete or stone granite countertop or tile edge polishing.
• SEAMLESS GARDEN HOSE CONNECTION & EASE OF USE - In-built water quick-connect to garden hose, Water pressure control, Water Stopper, Extra-long water line, adjustable granite concrete wet polisher water flow line for easy use, three-hole 120 degree water hole for even water distribution, no dry spot for concrete polishing pads or granite polishing pads. Soft-start for jerk free start of wet stone grinder/concrete polisher, splash guard for water control, Top D-handle must for stone polishing
• ENHANCED ELECTRICAL SAFETY - Class-A GFCI for enhanced electrical safety to safeguard hazardous electrical shock, Double-insulation motor, with added rubber handle cover, Extra-long 12 feet industrial grade electrical cable
• ERGONOMIC HANDEL DESIGN - Ergonomic grip-size, soft back handle and top-handle. Head heavy concrete countertop polisher / wet stone polisher design transfers machine weight on the stone concrete polishing surface to increase polishing pressure and naturally enhanced polishing performance

User questions & answers

Question:	What is the RPM range
Answer:	In my experience, I believe I may have had the water flow to high which splashed onto the top of the polisher. Also I used it for long time periods (30 minutes plus). Once I purchased rubber gloves ($10 pair), I no longer got shocked. Overall the polisher did a beautiful job on my concrete countertops.
Question:	how do you remove the backing pad after has been installed
Answer:	These are made to polish stone by using a series of diamond grit pads that start at about 50 grit up to 3000 then a polish pad. They will give you a glass smooth finish on granite or marble. I don't believe the cement based plaster that is used in pools has a fine enough grain to be polished to this smoothness. Most that I have seen use a coating to achieve the glass smoothness.
Question:	Is this a brushless motor
Answer:	I don’t see why not, but I believe that Corian can be sanded and polished using traditional paint processing and buffing tools and tech, so this kind of water-only polisher might be overkill.
Question:	Why are people getting shocked while using this product
Answer:	yes you can and yes it is 5/8

Product description

Includes PWE11-100 4-in/5-in Wet Polisher - 602050420, Loop Handle.

• Meets the ansi/isea requirements

User questions & answers

Question:	Is this polisher made in China or Germany
Answer:	The grinder has 1/2" Male Quick Disconnect, you can buy a 6' hose attachment that is lighter than std hose with the disconnects on each end, you need to put an adapter on the end of your hose that converts it from Male hose thread to 1/2" Male QD, each end of the lighter 6' hose has Female 1/2" QD fittings. I highly recommend getting the lighter hose whip, std hose is too stiff to make working comfortable.
Question:	Does the unit come with the backer pad shown in the photo
Answer:	Yes it does very well, it comes with different grades of sanding disc's that really do work good on jasper and agate.
Question:	Providing my own pads, could this be used in an automotive application for buffing and polishing paint
Answer:	The kit does not include any dust shroud, and we dont offer any dust shroud. If you have right sizes shroud you can connect and use. Wet polisher arbor size usually bigger then grinders, you need to find right sized dust shroud to use on this.
Question:	What size threads dia. , etc. is the water hook up
Answer:	6 months limited warranty.