EsportsMJJ 6.35/7.94/9.5/12.7mm Woodworking Square Hole Drill Bit Mortising Chisel 1/4 to 1/2 Inch - 1/2

• 6.35/7.94/9.5/12.7mm Woodworking Mortising Chisel Square Hole Drill Bit 1/4 to 1/2 Inch
• Material: high-speed steel
• Hardness: HRC48-50
• Size: 1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.5mm), 1/2" (12.7mm)
• Clamping shank diameter: 19mm (Round)

6.35/7.94/9.5/12.7mm Woodworking Mortising Chisel Square Hole Drill Bit 1/4 to 1/2 Inch Specification: Material: high-speed steel Hardness: HRC48-50 Size: 1/4" (6.35mm), 5/16" (7.94mm), 3/8" (9.5mm), 1/2" (12.7mm) Clamping shank diameter: 19mm (Round) Length: 210mm Features: This Mortising Chisel is great for drilling square holes in wood with a mortising machine or a mortising attachment. Square hole drill can not be used on an electric drill, drill square holes need to fit a square hole drill drilling (mortise and tenon machine) to use. Mortise and tenon square hole drilled by the terrible + outer sleeve in the middle of the combination. Reduce labor intensity of construction workers, speed up the construction speed, reduce construction costs for construction, installation, renovation, decoration industries. Note: Please note that the package inlcudes one drill only. Package Included: 1 x Square Hole Drill Bit