Hollow Chisel Mortise Drill Tool

Hollow chisel mortise bits for cutting square holes in wood with a mortising machine or a drill press mortising attachment.

• Square holes – Clean, square mortises for joinery.
• High-speed steel – Heat treated to HRC48-50.
• Four sizes – 1/4 in (6.4 mm), 5/16 in (8 mm), 3/8 in (9.5 mm) and 1/2 in (12.7 mm), each in its own case.

Fits standard mortising machines and drill press attachments. Not for use in a hand drill.

Included: 1 bit or a set of 4 bits

Clamp the workpiece firmly and wear eye protection.