uxcell Square Hole Drill Bit, 1/2" High-Carbon Steel Hollow Chisel Mortise Power Tool for Woodworking 2 Pcs (Silver & Black) - a15062200ux0311

• 【SIZE】1/2" square chisel width, 70mm cutting depth, 210mm total length. 【TIP AND EDGE】The best designed Drilling Point tip and 4 Cutting Corner to enable the fast drilling and penetrating into working pieces of wood very smooth and fast. 【MATERIAL】Made of durable metal material provides a long use life. 【ADVANTAGE】With long drill core and square chisel, easy to lock the hole on the wood, can reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs. 【OPERATION】Used with mortise and tenon machine with double effect, and electric drill, hammer and other tools is required for punching square hole in wood.