CRL 2-1/2" Contractors Series Diamond Drill Sandblasting Tools test both sides of the

test both sides of the window to double check

Specifically developed for sealing dynamically moving joints

Their convenient size requires minimal effort and allows a more consistent finish

CRL 321 can be tooled for approximately 30 minutes

Both are interchangeable

CRL 2-1/2" Contractors Series Diamond Drill Sandblasting Tools test both sides of theIdeal for Brick, Block and Concrete Made for Heavy Duty Use This CRL Contractors Series Diamond Drill is excellent for drilling brick, block, concrete, mortar, marble and other similar materials. The 6" (152 mm) drilling depth allows penetration through the thickest of building materials. With a removable center pilot, core removal of thicker materials is made easy. The CRL Contractors Series Diamond Drill can be used wet or dry. A hand held drill