CRL 8 x 3/4" Square Drive (Robertson) Pan Head Sheet Metal Screws Automotive Tapes Included is the CRL Router

Included is the CRL Router Template System which comes with everything you need to fabricate perfect switch plate cut-outs

Heavy-Duty Industrial 1/2" (12 mm) Drill Chuck for Positive Bit Retention

The cast iron rings have rubber bases to hold them securely to the glass

so you can rapidly drill a cleaner looking hole

It meets or exceeds the following specification standards: Federal Specifications TT-S-001543A (COM-NBS) Class A for silicone building sealants

CRL 8 x 3/4" Square Drive (Robertson) Pan Head Sheet Metal Screws Automotive Tapes Included is the CRL RouterExcellent Driving Power Resists Driver Slippage Black Oxide Coating Available in Flat and Pan Head The CRL Square Drive Sheet Metal Screws are also known as Robertson and Scrulox Drive. The Square Drive head configuration offers excellent driving power and resists driver slippage. These Type "A" Sheet Metal Screws have a black oxide coated finish. Sold in quantities of 100 packed in re sealable plastic tubs, and bulk packages of 1000 in poly bags.