8 Set Square Drill Bit Mortising Chisel Woodworking Tool 6.35-16mm

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