General Tools 77 Automatic Center Punch (31062)

• One-handed spring impact operation; no hammer needed
• Spring tension adjusts for light or heavy strokes and marking
• Lightweight aluminum body with knurled finger grip and duable alloy steel parts
• Hardened steel point

The #77 Automatic Center Punch can punch, mark, scribe and start drill, nail or screw holes. It is ideal for machinists and automotive repair pros.