With the CMT Keyhole Bit you can make holes that keep your frames,plaques or any wall hanging perfectly straight and attached to thewall. The bit bores an entry hole in the wood, then proceeds to cut a3/16 hole and finishes by boring a larger opening under the surface.The perfect way to securely mount wall hangings on screws and nails.


Tech Specs:

• Shank - 1/4
• Cutting Dia. (in.) - 3/8
• Cutting Dia.(mm) - 9.53 Cutting Length - 7/16

Shank: 1/4" Cutting:7/16" Diameter: 3/16"3/8" Length: 2-9/64"