CRL 3 Piece Cast Iron Rubber Base Ring Drilling Set Putty Knives & Caulking Spatulas A slight odor of mineral

A slight odor of mineral spirits will be detected during application

making the score

Always wear the proper safety gear including eye protection when using a sharpening stone

Sonneborn: NP2

CRL 3 Piece Cast Iron Rubber Base Ring Drilling Set Putty Knives & Caulking Spatulas A slight odor of mineralCast Iron Rings with Rubber Bases Retains Abrasive Grain Slurry Eliminates Putty Dam Use these CRL Base Drilling Rings to retain the abrasive grain slurry while the drill is rotating and cutting into the glass. The cast iron rings have rubber bases to hold them securely to the glass, providing a proper seal, and allowing the coolant to mix with the grain for quick, efficient drilling. They are available in four diameters, individually or as a set.