CRL 5/16" Prismatic Glass Drill Glass Thickness Measuring Tools Coating Detectors & Meters LIMITATIONS: It is not recommended

LIMITATIONS: It is not recommended for concrete and stone expansion joints

very durable plastic

Ratchet Action Rod Moves Material Smoothly

Red Indicator Lights Up On Contact with Low-E

and copper against harsh chemicals and acids

CRL 5/16" Prismatic Glass Drill Glass Thickness Measuring Tools Coating Detectors & Meters LIMITATIONS: It is not recommendedOur Best Carbide Drill Precision Ground on Three Sides Available Sizes from 1 8" to 1 2" (3. 2 to 12. 7 mm) This CRL Prismatic Glass Drill is the standard of quality for glass drilling throughout the flat glass industry. The tungsten carbide tips mean you can produce hundreds of high quality holes without needing to re sharpen the drill. The extra long tip assures long lasting, precision drilling. Prismatic Drills should only be used in glass drilling