AASONS 25mm Woodworking Square Hole Bits Drill Mortising Chisel Drill Mortising Chisel

Square Hole Drill Bits: The Drill square holes need to fit a square hole mortise and tenon machine to use. It is great for drilling square holes in wood with a mortising machine or a mortising attachment. Material: It is made of high-speed steel that has high heat treatment, high hardness, lengthened core, high concentricity. The square hole drill is mainly used for woodworking aspects. Advantage: It reduces labour intensity of construction workers, speed up the construction, reduce construction costs, installation, renovation, decoration industries. Convenience: The spiral twist drill bit can be drilled into the wood very smooth and quickly. The comminated material can be quickly discharged from the tube. Use for the opening square hole, suitable for construction, installation, renovation, decoration industry, etc.