CRL Roller Blocks Straight Shank Diamond Countersinks The 1/4" (6 mm) shank

The 1/4" (6 mm) shank diameter fits any 1/4" or 3/8" (6 or 10 mm) drill chuck

10F-12R Bit Guide

Powerful 7

The strap frame rotates to move the nozzle tip where needed

It can also be used on marble and granite

CRL Roller Blocks Straight Shank Diamond Countersinks The 1/4" (6 mm) shankRotate and Support Heavy Sheet or Insulating Glass with Ease Turn Over to Use as a Set of Resting Blocks Rubber Base Ensures Traction CRL Roller Blocks were developed to aid in the safe handling of large and or heavy glass panels. They are made from extremely strong, high density polyethylene so they will not chip or scratch the glass. Each of these blocks has a cushioned 90 degree inside corner on which to rest the glass while rotating or maneuvering