Standards Manage Your Business
We Manage Your Standards
Standards Manage Your Business
We Manage Your Standards
General Specification for 1/8 Inch Diameter Shank Carbide Drills for Printed Boards
1.0 SCOPE
This document establishes definitions for terms and requirements for solid carbide twist drills with four-faceted drill points used in the fabrication of printed boards.
1.1 Classification
For the purposes of this specification, drills will be classified as follows:
Type 1 Step down—With drill body diameters up to 0.125 inch in diameter.
Type 2 Step up—With drill body diameters 0.126 inch and above in diameter.
Type 3 Small drills—Drill body diameters of 0.0135– 0.020 inches.
Type 4 Microdrills—Drill body diameters less than 0.0135 inches.
1.2 For metric conversion see attached table.
Currently Viewing
Expand Your Knowledge and Unlock Your Learning Potential - Your One-Stop Source for Information!
© Copyright 2025 BSB Edge Private Limited.
