Set of 6 Square Hole Wood Drill Bits, Hollow Steel Chisels, Woodworking Tools, Square Hole Drill Bit, Mortising Drill Bit, Chisel, 6.4/8/9.5/12.7/14/16mm Square Hole Bits

【Excellent quality】 This square drill is made of high speed steel, sturdy and practical, with high efficiency. Heat-treated sharp edge, high hardness, continuous blade, fast cuts.

【High-quality design】 The cutter's drill guide design provides effective protection against tearing at the beginning of use. No offset, the saw blade is automatically discharged from the top of the hole on both sides, the drill bit is not blocked.

【Labor-saving and precision】Reduce the labor intensity of construction workers, accelerate the construction speed, reduce construction costs for construction, installation, renovation, decoration.

【Wide range of uses】 Ideal for drilling square holes into wood with a mortiser or mortising accessory. Square hole drill bits are mainly used for woodworking.This drill bit cannot be used with an electric drill or a bench drill.【Wide Application】This square hole drill bit is suitable for wood, including MDF, plastic, particle board, channel wood, pine, basswood, etc.Note: It is not suitable for working with metal, glass, concrete, plasterboard, etc.【Scientific Matching and Various Sizes】6 pieces per pack with different slot diameters to meet your needs.Easily drill precise holes.Each drill bit is packaged in a single, easy-to-maintain plastic case.