4Pcs Woodworking Square Hole Drill Bits Wood Mortising

Detailed Information About The Product:

Name：4Pcs Woodworking Square Hole Drill Bits Wood Mortising Chisel Set Mortise Chisel Bit Kits Woodworking Hole Saw Sets with Twist Drill DIY Mortising Chisel Power Tools
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.
Size: 1/4 inch (6.35mm), 5/16 inch (7.94mm), 3/8 inch (9.5mm), 1/2 inch (12.7mm)
Material: high-speed steel
Hardness: HRC 48-50
Color: silver
Clamping shank diameter: 19mm (Round) Length: 210mm
Package Included: 4 x Drill Bit
Only the above package content, other products are not included.
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.

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