CRL 3M® 4" 120 Grit QRS Mount Flexible Diamond Disc Vinyl Rollers & Accessories It has a heavy-duty motor

It has a heavy-duty motor with a 1/2" ball bearing supported chuck to eliminate wobble

The molded handles are a black resin for a positive grip

2" (51 mm) diameter

Used in Pairs to Hold a Glass Shelf in Place While Adhesive Cures

CRL Bulk Rolled Setting Block Material cushions and supports glass

CRL 3M® 4" 120 Grit QRS Mount Flexible Diamond Disc Vinyl Rollers & Accessories It has a heavy-duty motorVery Aggressive Grinding Pad Diamonds Offer Longer Life 1" Center Hole The CRL 3M Diamond Disc offers tremendous life compared to a standard silicon carbide disc. In addition, the edge quality is consistent throughout the life of the disc. This is because diamonds wear much slower than silicon carbide. Since diamonds cut rather than scratch like sandpaper, less pressure is required to accomplish the same material removal. Disc life and finish will