Description of πͺ Powerful Performance: Makita GA7031Y 7 Inch Angle Grinder β Unleash Your Grinding Potential!
Powerful 15.0 AMP motor delivers 8,500 RPM for faster material removal. Spiral bevel gears for smoother rotations and a more efficient transfer of energy. Labyrinth construction prevents debris from penetrating the motor, bearings and gears for longer tool life. Zig-zag varnish protects the armature coil from dust and debris for longer motor life. Wire mesh intake covers are engineered to prevent debris from entering motor especially when used in close proximity to other grinders.
The unit I received had problems when shipped. Lots of grease blown out of front oil seal which is probably fine just means they poured too much? The second issue I had was that the trigger was accurate and didn't want to work half the time. I don't know what happened there. Finally, the higher RPM compared to the 7021 makes it less powerful, as higher RPM means less torque for the same power. I think torque gets the job done when it comes to grinding concrete and masonry. These diamond cupβ¦
God how lucky I was to use this grinder! I have your typical 4 1/2" coffee grinder and use it like hell. So I figured I could upgrade to a larger crusher for projects that need it. So I bought this grinder for concrete paving jobs, but will use it for use many other projects such as welding, body work, etc. It made the job a lot easier with the 7" blade and the ability to rotate the handle for a comfortable grip .and tilt angle. It's well made, quality construction, fully justifies the priceβ¦
I haven't had any other 7 inch sanders so I can't compare them to other makes/models and I don't have it very long so I can't confirm longevity but what can I say I bought it as an extra tool. I am not a metalsmith but a carpenter and work primarily with wood although I do the occasional welding job and I also have a 4 1/2" grinder. However I have found many uses for this tool especially for sanding floors. If you think about it, a disc sander is basically a tool that costs 10 times more.Withβ¦