CSLU-Tool Woodworker Square Hole Drill Bits Mortising Chisel Set, Mortise Chisel & Bit Set (1/4-Inch, 5/16-Inch, 3/8-Inch, 9/16-Inch, 5/8-Inch and 1/2-Inch);

Features:

Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc.
Special steel, heat treatment, HRC48~50, 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 & other tools.
This quality set also comes with a convenient plastic storage case.

Specifications:

Material: HSS
Hardness: HRC 48~50
Holder diameter: 19mm (circular)
Drilling core length: 200mm
Slotting flute diameter Total weight
001 1/4"(6.4mm) approx 150g
002 5/16"(8mm) approx 161g
003 3/8"(9.5mm) approx 177g
004 1/2"(12.7mm) approx 206g
005 9/16"(14mm) approx 251g
006 5/8"(16mm) approx 310g

Shaft length:
1/4"(6.35mm): 60mm
5/16"(8mm):60mm
3/8"(9.5mm):75mm
1/2"(12.7mm):60mm
9/16"(14mm):70mm
5/8"(16mm):70mm



Package Included:
6x Tenon Hole Drill Bit