Kyuionty Square Hole Drill Bit, 1/4 Inch Woodworking Hole Saw Mortising Chisel Drill Bits, Hollow Mortise Chisel Spiral Drill Bits Tool - Kyu22101907

• Durable Material: The mortise chisel drill bit is made of high quality carbon steel, with sharp cutting edge, high hardness, quick cutting, high efficiency, wear and corrosion resistance, sturdy and durable. Groove Design: The drill bit is designed with U-shape to facilitate the discharge of wood chips, and help you better improve drilling efficiency. Advantages: The mortising drill bits with long drill core and square chisel, can drills precise holes with little pressure, it helps to reduce labor intensity of construction workers, speed up the construction speed. Wide Application: The square drill bit is use for the opening square hole, suitable for wood, including MDF, MDF, particle board, channel wood, pine wood, basswood, etc. It is not suitable for processing metal, glass, plastic, concrete, gypsum board etc. 100% Satisfaction Guarantee: Our products are backed by quality customer service to ensure that your satisfaction is guaranteed. If for any reason you do not like our products, you can return them unconditionally within 90 days and get a full refund.