DTQ1082 Features: * S23 CNC Thin Wall Crown Core Bits * It is designed to drill clean, smooth holes such as faucet-mounting holes in counter tops * For cutting porcelain, granite and hard materials * Designed to work on CNC machines, this bit is the same S23 bit but with 1/2"" gas threads * Core Travel: 3"" * Thread Size: 1/2"" Gas * Wet only * Great for CNC machines Construction: * It can also be used in the construction trades wherever holes may be needed for water, gas and electrical piping, especially when natural stone is already installed Dimensions: * Other sizes: 1-1/2"" W, 1-1/8"" W, 1-1/4"" W, 1-3/8"" W and 2"" W * Diameter: 1"" W * Overall Length: 4"" L