8x Mortise Square Drill Wood Working Tool 1/4, 5/16, 0.31, 3/8, 0.39, 0.47, 0.63 Inch with Drilled

Description:

- Professional woodworking drill bit, square cutter

- High speed steel material, high hardness, lengthened core

- Matched use with mortise and tenon machine

- The square hole punching needs to use electric drill, hammer and other tools

- For construction, installation, renovation, decoration, etc.

Specification:

- Material: High Speed Steel

- Clamping shank diameter (cylinder): Approx. 19mm/ 0.75 inch

- Drilled core length: Approx. 200mm/ 7.87 inch, or 210mm/ 8.27 inch

- Center drill bit diameter (the square hole side length):

- 6.35mm(1/4"), 7.94mm(5/16"), 8mm(0.31"), 9.5mm(3/8"), 10mm(0.39"), 12mm(0.47"), 12.7mm(1/2"), 16mm(0.63"), 8-Piece set

Package Includes: 1 Piece 6.35mm Square with Drilled Core 1 Piece 7.94mm Square with Drilled Core 1 Piece 8mm Square with Drilled Core 1 Piece 9.5mm Square with Drilled Core 1 Piece 10mm Square with Drilled Core 1 Piece 12mm Square with Drilled Core 1 Piece 12.7mm Square with Drilled Core 1 Piece 16mm Square with Drilled Core