Starrett 51284 Center Punch 5 Inch Knurled Grip

Product Description

The STARRETT 51284 is a center punch designed for accurate layout work in metal, wood, and other materials. The square knurled grip prevents the tool from rolling when set down on a workbench, keeping it where you put it during a job. At 5 inches in length, it is a standard-size punch suited for one-hand use. The tip is accurately centered and ground at the proper angle to deliver consistent indentations for drill starting points. The body is hardened and properly tempered for durability under repeated strikes with a hammer.

This center punch is used by machinists, pipefitters, electricians, HVAC technicians, and general trade professionals for marking drill start points, scribing locations, and transfer punching. It fits naturally into any tool pouch or toolbox and is a standard item on service trucks and in fabrication shops. The 5-inch length works well for both light bench work and field use where controlled, accurate marking is needed before drilling into metal panels, pipe brackets, or structural components.

Key Features

• Square knurled grip prevents rolling on flat surfaces
• Hardened and tempered body for long service life under hammer impact
• Tip accurately centered and ground at proper angle for consistent drill-point starts
• 5-inch overall length suits one-hand use in bench and field applications
• Compact size fits standard tool pouches and service toolboxes

Compatibility

Designed as a general-purpose center punch compatible with standard layout and marking applications across metal fabrication, mechanical service, and construction trades.

Installation Notes

Center punches are hand tools requiring no power source or fastener installation. Always wear safety glasses when striking a punch with a hammer to guard against metal chip ejection. Position the tip precisely on the marked location before striking to avoid off-center indentations. Inspect the tip periodically for wear or deformation and regrind or replace when accuracy is compromised.

Technical Specifications

• Length: 5 inches
• Grip Style: Square knurled
• Hardening: Hardened and tempered

Standard Information

• Brand: STARRETT
• Manufacturer Part Number: 51284