Eraser Wheel has serrations for improved cooling effect air flow.
Dynabrade surface grinding wheel has a diameter of 4 in. The quick change attachment allows for easy mounting to the tool or pad. In addition to the other aspects of these parts, another important component of these is the thickness. This Dynabrade part is 1 1/4 in thick. All abrasive products that rotate or spin, such as the ones in this category, have a maximum speed at which you can run them. This Dynabrade surface grinding wheel can be run at a maximum speed of 4000 RPMs.

3M 71358, 641WY 1/4" X 24", 600 Mesh Diamond Cloth Belt, 7010534894
ACS Diamond Cloth Belt, CX1250 3" X 90" 45U
3M 45557, Cubitron ll Cloth Belt 784F, 60+ YF-weight, 2 in x 72 in, Film-lok, Single-flex, 7010299100, 50 per case
3M 21543, Scotch-Brite Roloc Clean and Strip XT Pro Extra Cut Disc, TR, 2 in x NH, A XCS, 7100179815, 60/box
3M 41597, Polyurethane Adhesive Sealant 560, Black, 310 mL Cartridge, 7100005901, 12/Case
Standard Abrasives 863198, Quick Change TR A/O Unitized Wheel, 631, 3 in x 1/4 in, 7010330152
3M™ 72122, Portable Compressed Air Filter and Regulator Panel 256-02-01, 100 cfm, 8 outlets, with Carbon Monoxide Monitor, 7000052147, 1 EA/Case
Dynabrade 15420 Dynafile III Abrasive Belt Tool 
