Traditional Culture Encyclopedia - Traditional festivals - What are the specifications of woodworking tapping machine?

What are the specifications of woodworking tapping machine?

The specification of woodworking hole opener is shown in the figure, and the diameter of hole opener is in mm.

Usage: used for portable electric drills, pneumatic drilling tools and vertical drilling machines. ?

Scope of application: stainless steel, iron, metal pipe, plate and wood board, hard wood board, three boards, plastic products, etc. ?