Square Hole Drill Bit & Adapter Set,Wood Mortiser Drill Bit Attachment,Mortising Chisel Set Drill Press Hollow Chisel Mortise Drill Tool for Mortise Machine (1/4, 5/16, 3/8,7/16,1/2") - belistair, TGYHUJ5OL

• MORTISING ATTACHMENT FOR DRILL PRESS: hand drill clamp diameters ranging from 38 to 55 mm/ 1.5 to 2.2 inches for easy installation and use. Please note that it is only suitable for bench drill and hand drill with clamps. WAHT YOU GET: You will receive 1 square hole bit adapter and 4 square hole drill bits, Drill bits diameters: 1/ 4 Inch (6.4mm), 5/ 16 Inch (8mm), 3/ 8 Inch (9.5mm), 1/ 2 Inch (12.7mm). Wood Mortising Chisel Set: The Woodworking Square Hole Drill Bits come with a wood mortising chisel set, which makes it easy to create precise and accurate square holes.The chisels are designed to fit perfectly with the drill bits, ensuring that the holes are clean and precise. This feature makes them an excellent tool for woodworkers who want to create high-quality and professional-looking woodworking projects. High-Speed Steel Material: these square hole drill bits made of high speed steel, through heat processing, with high hardness drill bits, and sharp-edged square chisel, long life use. It will get double effect by matched use with mortise and tenon machine. Widely Used: Great for drilling square holes in wood with a mortising machine or a mortising attachment. These woodworking morstising chisel bits can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industrie.