Square Woodworking Mortising Countersink Woodworker Review

High Quality Material: These square hole drill bits are made of high-speed steel, with high hardness up to HRC48 - 50, durable, practical and long life. 5 Different Sizes: 1/2 Inch (12.7mm), 1/4 Inch (6.0mm), 5/16 Inch (8mm), 3/8 Inch (9.5mm), 7/16 Inch (11mm), 5 kinds of sizes can meet your different ordinary need. Easy to Use: It will get double effect by matched use with mortise and tenon machine.The square hole punching needs to use electric drill, hammer or other tools. Save Time: 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. Widely Used: Great for drilling square holes in wood with a mortising machine or a mortising attachment. Fits all mortising machines and drill press attachments. Square hole drill is mainly used for woodworking aspects.