Mudder 2 Pieces Diamond Cup Grinding Wheel, Include 4-1/2 Inch 644030 Double Row Grinding Wheel, 4 Inch 12-Segment Turbo Row Grinding Wheel Angle Grinder Disc for Grinder Polishing and Cleaning Stone

Q: will they fit a Black & Decker Hand grinder?

Most cups will fit any grinder. These come with two inserts, if there's a size difference.

Q: What is the maximum RPM these can be used?

I believe the max is 3800-4200 rpm .You use these on standard 4 in grinders both corded or battery. I prefer corded because of the consistency of rpm when u push down on cups to grind material

Q: What size is the arbor?

Please refer to the second picture of the product page to get the size information.

Q: Can this product be used on wood such as tree roots or stumps?

This is not appropriate for wood. It will only burn wood, not cut.

2.0/5

Product ID: 293239596

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Details

Grit Material
Diamond
Product Dimensions
4.5"L x 4.5"W
Brand
Mudder
Compatible Devices
Angle Grinder
Grit Number
60

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Description

Mudder 2 Pieces Diamond Cup Grinding Wheel, Include 4-1/2 Inch 644030 Double Row Grinding Wheel, 4 Inch 12-Segment Turbo Row Grinding Wheel Angle Grinder Disc for Grinder Polishing and Cleaning Stone