The Punch's cutting edge is shaped on a grinder using a drill (the preferred way), or on a metal lathe.

Center Punch

Used to mark the position for drilling, helping to prevent the drill bit drifting.

Prick Punch

Used to mark positions by hand for work. Generally a hammer is not used, or only lightly used.

General Guidelines
Punch Type β Comments
Center 90º
Prick 30º

Notes & Comments
Information regarding Grindstones

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