REHTRAD 7/16 Square Hole Saw Bit,Woodworking Tools,Woodworking Square Drill Bits,Square Hole Drill Bit for Wood 11.1MM (Silver)

Specifications:Fits all mortising machines and drill press attachments,Square hole drill is mainly used for woodworking aspects. High Hardness:Made of high speed steel with sharp-edged square chisel. High Working Efficiency:A one-time processing of a square hole, and crushed wood chips discharge from the tube, keep the edges are straight and clean Flute Design:With long drill core and square chisel, easy to lock the hole on the wood, then you can get different mortisers quickly Woodworking Set:Great for drilling square holes in wood with a mortising machine or a mortising attachment,Fits all mortising machines and drill press attachments (Please note can not be used on an electric drill)