Williams P-40 Center Punch 3/8 in Point 5 in

Product Description

The WILLIAMS P-40 is a center punch designed for accurately marking metal and other hard surfaces before drilling. The 3/8-inch point diameter and 5-inch overall length make it a practical size for bench work and field use. It is a hand-driven tool struck with a hammer to create a precise indentation that guides drill bits and prevents walking. The P-40 is built for use by machinists, pipefitters, ironworkers, and general trade technicians who require consistent, repeatable marking on metal workpieces.

This center punch suits residential and commercial trade applications wherever layout and hole-location work is required. It is commonly used in HVAC, plumbing, and electrical fabrication shops, as well as on structural and mechanical assemblies. The 5-inch length provides sufficient grip and control when striking with a standard ball-peen or machinist hammer.

Key Features

• 3/8-inch point diameter for positive indentation on metal surfaces
• 5-inch overall length for comfortable single-hand grip
• Hand-driven design compatible with standard machinists and ball-peen hammers
• Compact and lightweight at 0.152 pounds for easy transport in a tool pouch
• Manufactured in the United States

Compatibility

Designed as a standard hand-driven center punch suitable for general metal layout and drilling preparation work across trade and fabrication applications.

Installation Notes

Center punches are used by hand with a hammer and require no power source or special tooling beyond a standard machinists or ball-peen hammer. Position the point firmly on the marked layout line before striking to prevent the punch from slipping. Always wear appropriate eye protection when striking any hardened tool. Inspect the punch head for mushrooming before each use and dress or replace as needed to prevent chip hazards.