Square Hole Drill Bits Saw Wood Mortising Mortise Chisel 5/16 Inch New,5/16(8mm) NO5114

Features:

Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc.

Special steel, heat treatment, high hardness, lengthened core, high concentricity.

It will get double effect by matched use with mortise and tenon machine, the square hole punching needs to use electric drill, hammer and other tools.

The force of the drill sleeve is on a level, which effectively protects against bursting at the beginning of use

U-shaped chip channel design facilitates the discharge of wood chips and improves drilling efficiency

Specifications:

Material: Bearing steel

Specifications Square Hole Size Shank Diameter Slotting Depth Total Length Weight

1/4 6mm 45mm 175mm 120g

5/16 8mm 60mm 195mm 160g

3/8 9.5mm 60mm 195mm 170g

7/16 11mm 60mm 195mm 210g

1/2 12.7mm 60mm 195mm 220g

9/16 14mm 75mm 220mm 280g

5/8 16mm 75mm 220mm 280g

3/4 19mm 75mm 220mm 410g

7/8 22mm 75mm 220mm 515g

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