CRL 3/8" Spearpoint Glass Drill Silicones There are center reference marks

There are center reference marks inscribed on the outside of the drill housing for easy line up of your holes

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fast-drying adhesive for permanently attaching an array of materials

and the overall length is 7-9/16" (192 mm)

CRL 3/8" Spearpoint Glass Drill Silicones There are center reference marksFor Use with Low RPM Drilling Machines Available Sizes from 1 8" to 1 2" (3. 2 to 12. 7 mm) Works with CRL2, SDM4 or Regular Power Drills This CRL Spearpoint Glass Drill meets your demand for a low priced, reliable glass drill. The diamond lapped, spade shaped tip will drill many smooth holes in glass, vitrolite, china, ceramic, tile, etc. You can use this drill with hand held, low RPM drilling machines. Capable of drilling holes very fast, this drill