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)

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)

• Fits more mortising machines and drill press attachments
• 1/4-Inch, 5/16-Inch, 3/8-Inch, 9/16-Inch, 5/8-Inch and 1/2-Inch sizes
• Made of the highest quality tool steel
• High performance flute design geometry for superior chip extraction
• Hardness: HRC 48~50

<b>Features:</b><br> <br> Professional wood drill bit, suitable for construction, installation, renovation, decoration industry, etc.<br> Special steel, heat treatment, HRC48~50, high hardness, lengthened core, high concentricity.<br> 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.<br> This quality set also comes with a convenient plastic storage case. <br> <br> <b>Specifications:</b><br> <br> Material: HSS<br> Hardness: HRC 48~50<br> Holder diameter: 19mm (circular)<br> Drilling core length: 200mm<br> <b> Slotting flute diameter Total weight</b> <br> 001 1/4"(6.4mm) approx 150g<br> 002 5/16"(8mm) approx 161g<br> 003 3/8"(9.5mm) approx 177g<br> 004 1/2"(12.7mm) approx 206g<br> 005 9/16"(14mm) approx 251g<br> 006 5/8"(16mm) approx 310g <br><br> <b>Shaft length:</b><br> 1/4"(6.35mm): 60mm<br> 5/16"(8mm):60mm<br> 3/8"(9.5mm):75mm<br> 1/2"(12.7mm):60mm<br> 9/16"(14mm):70mm<br> 5/8"(16mm):70mm<br><br> <br> <br> <b>Package Included:</b><br> 6x Tenon Hole Drill Bit