The square drill bits drill square holes easily and accurately in solid wood board, plywood, MDF, etc. They are designed to be used with a mortise machine. With the necessary accessories, these mortising chisel bits can also be connected to a drill press. These square hole bits are made from high-speed steel and undergo heat treatment to achieve high hardness. The square chisels are very sharp and durable, reducing the effort and saving you time in the drilling process. The U-shape design ensures smooth chip removal. These long mortise bits have a high level of centricity, ensuring precision and accuracy cut. 4 different sizes of mortise drill bits are available: 1/4inch 5/16inch 3/8inch 1/2inch Technical information Drill Size Shank Size OAL 1/4" 6.8mm 170mm 5/16" 5.5mm 210mm 3/8" 6.5mm 210mm 1/2" 8mm 210mm Applications Wood Composite Material Machine Mortise Machine Drill Press SHIPPING DIAMETER UNIT Pcs Net Weight 50 Package In Plastic Box Package Size 95 x 18 x 18mm
