Types of Punch in Marking Tools: A Complete Engineering Guide

Comparative layout guide showcasing various types of punch in marking tools including 30 degree prick punch, 60 degree dot punch, and 90 degree center punch.

In mechanical fitting shops, sheet metal work, and precision machining, marking layout lines on metal workpieces is an essential preparation step. Scribers trace lines across layouts, but these surface marks easily rub off during handling and coolant spraying. To create permanent reference marks, machinists use high-carbon steel tools known as punches. Understanding the types of … Read more