Used for piercing, or marking for starting drills in metal and other materials; If you want to scribe lines in metal, consider a prick punch Over all length (OAL): 6-1/4-Inch, body size: 5/8-Inch, body type: Hex, point size: 3/8-Inch (0.375-Inch) Shot-blasted finish Made in the USA, Weight: 0.2 Pounds, Manufacturer: Mayhew Tools