uxcell 3pcs Square Hole Drill Bit 1/2"(12.7mm) High Carbon Steel Hollow Mortiser Auger for Woodworking Carpentry Mortise Tenon Machine

uxcell 3pcs Square Hole Drill Bit 1/2"(12.7mm) High Carbon Steel Hollow Mortiser Auger for Woodworking Carpentry Mortise Tenon Machine

• Size - The square hole drill bit size is 1/2"(12.7mm), Cutting Depth: 75mm / 2.95", Total Length: 210mm / 8.27"
• Material - Made of High-carbon steel, through heat processing, with high hardness (48-50 HRC) drill bits, and sharp-edged square chisel, durable and lasts long.
• Feature - 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.
• Application - Suitable for mortise and tenon machine with double effect, and electric drill, hammer and other tools is required for punching square hole in wood.
• Note - If bench drills or electric drills are used, they must be strictly executed according to the operation method. Otherwise they can only be processed into round holes and cannot be processed into square holes.