CRL Amazing Glazing 1" Straight Shank Diamond Countersink Brushes & Accessories A reliable and inexpensive tool

A reliable and inexpensive tool every glazier should own

No need to stop and drill a pilot hole before routing

4 mm) shank fits perfectly in our router systems and others that have matching fractional collets

Installation Tab Makes Insertion Easy

The small knurled knob at the end of the shaft is loosened

CRL Amazing Glazing 1" Straight Shank Diamond Countersink Brushes & Accessories A reliable and inexpensive toolMetal Bond Diamonds Straight Shank or Belgian Type Mounts Chip Free 90 Degree Tapers This CRL Diamond Countersink features a medium grit diamond for grinding precise, chip free, 90 degree 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