6 Piece Square Hole Drill Bit Set, Steel Hollow Chisel Woodworking Tools Set (6.4/8/9.5/12.7/14/16mm) Square Hole Drill Bits

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

【High-quality design】 The drill bit guide design of the cutter 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】Reduces the labor intensity of construction workers, accelerates construction speed, reduces construction costs for construction, installation, renovation, decoration.

【Wide range of uses】 Ideal for drilling square holes in wood with a mortiser or mortising attachment. Square hole drill bits are mainly used for woodworking. This drill cannot be used for electric drill or bench drill

【Wide application】This square hole drill bit is suitable for wood, including MDF, plastic, particle board, channel wood, pine wood, basswood, etc. Note: It is not suitable for processing metal, glass, concrete, plasterboard, etc.

【Scientific matching and different sizes】6 pieces per pack with different slot diameters to meet your needs. Easily drill precise holes. Each drill is packaged in a single, easy-to-maintain plastic case.

Use square hole drills of different specifications and match the square tenon machine of appropriate power to make a square hole that meets the requirements.

Using different specifications of square hole drill bits, corresponding to the appropriate power of the square hole machine, you can play a square hole to meet the requirements - 1/4 inch (6.4 mm), 5/16 inch (8 mm), 3/8 inch (9.5 mm), 1/2 inch (12.7 mm), 9/16 inch (14 mm), 5/8 inch (16 mm)