A small clamp-on drill guide used for drilling stainless tubing and pipe. Swing off design allows the tool to be used without disassembly of the frame. Made of cast bronze body with knurled bronze thumbscrews and tool steel drill bushing. Accepts tubing from 3/4” to 1 1/4”. Standard drill size – 9/64” (5/32 and 3/16 also available)