CRL Amazing Glazing 1/2" Belgian Threaded Diamond Countersink Sandblasting Tools Available in 3/8" and 1/2"

Available in 3/8" and 1/2" (10 and 12

The 6" (152 mm) can handle most loads of the larger cups

heat-treated dog drives for even application

and can be painted

Shipping weight is 395 lbs

CRL Amazing Glazing 1/2" Belgian Threaded Diamond Countersink Sandblasting Tools Available in 3/8" and 1/2"Metal Bond Diamonds Straight Shank or Belgian Type Mounts Chip Free 90 Tapers This CRL Diamond Countersink features a medium grit diamond for grinding precise, chip free, 90 tapers into existing holes in glass. Versatile because it can be used on any hole size up to the maximum countersink diameter. Run at medium speeds, the countersink must be applied to the glass so it touches the circumference evenly. It can also be used on marble and granite.