CRL Amazing Glazing 1/2" Belgian Threaded Diamond Countersink Sandblasting Tools Shoe Blocks are held in

Shoe Blocks are held in place with Quick-Release pins for easy mounting and removal

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

Includes Nylon Scrub Pad

1/2" (12 mm)

heat-treated dog drives for even application

CRL Amazing Glazing 1/2" Belgian Threaded Diamond Countersink Sandblasting Tools Shoe Blocks are held inMetal 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.