4PCS Woodworking Square Drill Bits Set HSS Wear Resistant 14in 516in 38in 12in Countersink Bit

Feature: 1. TIME SAVING: These woodworking mortises can reduce the labor strength of construction workers, speed up construction, and reduce construction costs in the building, installation, renovation, and decoration industries. 2. MULTIPLE SPECIFICATIONS: Users can use different specifications of square hole drill bits with the right power of square hole machine to make the square holes that meet the requirements. 3. HIGH SPEED STEEL: These square hole bits are made of high speed steel and are heat treated for a high hardness bit and incisive square chisel for long life. 4. EASY TO USE: This drill can be used with a mortising machine to double the effect. Square holes need to be made with a drill, hammer or other tools. 5. PRIMARY USE: These square hole bits are ideal for drilling square holes in wood using a mortising machine or mortising attachment. Specification: Item Type: Woodworking Square Drill Bits Set Material: HSS Punch Size: 6.4mm (14in) 8.0mm (516in) 9.5mm (38in) 12.7mm (12in). Package List: 4 x Woodworking Square Drill Bit4 x Storage BoxTIME SAVING: These woodworking mortises can reduce the labor strength of construction workers, speed up construction, and reduce construction costs in the building, installation, renovation, and decoration industries. MULTIPLE SPECIFICATIONS: Users can use different specifications of square hole drill bits with the right power of square hole machine to make the square holes that meet the requirements. HIGH SPEED STEEL: These square hole bits are made of high speed steel and are heat treated for a high hardness bit and incisive square chisel for long life. EASY TO USE: This drill can be used with a mortising machine to double the effect. Square holes need to be made with a drill, hammer or other tools. PRIMARY USE: These square hole bits are ideal for drilling square holes in wood using a mortising machine or mortising attachment.