Features:

• Tungsten carbide tipped (TCT) pilot bit drills cement block, brick and other masonry materials
• Spyder's Rapid Core Ejectâ„¢ arbor removes cores without prying, cuts at an angle, and enlarges existing holesSpyder Hex10 pilot bit - 1/2-in hex, 1/4-in TCT drill bit
• Torque pins lock the hole saw in place - no tools are required to change out hole saws on the arbor2-7/8-In drilling depth
• Always drill using a drill motor that is equipped with a support handle