Proto J503/16S2 Starter Punch 1/16 Inch S2 Steel

Product Description

The PROTO J503/16S2 is a starter punch machined from S2 steel, designed to initiate pin and drift driving work in metal fabrication, maintenance, and assembly applications. With a 1/16 inch tip diameter and a 4 inch overall length, it delivers the reach and precision needed to start a punch line cleanly before switching to a longer drive punch. S2 tool steel provides high impact toughness and resistance to chipping under repeated hammer blows. This punch is a single-piece hand tool suited for use by mechanics, millwrights, pipefitters, and general maintenance technicians across industrial and trade settings.

This starter punch is sized for light pin removal, roll pin starting, and layout work where a fine tip and controlled strike are required. The 4 inch OAL keeps the tool compact enough for confined work areas while providing adequate grip length for controlled mallet or hammer strikes. It is appropriate for bench work, field maintenance, and toolroom use wherever a 1/16 inch starter punch is specified.

Key Features

• S2 tool steel construction for high impact toughness and long service life
• 1/16 inch tip diameter for precise pin starting and light drift work
• 4 inch overall length suits confined spaces and bench applications
• Single-piece design with no moving parts or fasteners to fail
• Sized for use with standard shop hammers and mallets

Compatibility

Designed as an OEM-style starter punch for general mechanical, maintenance, and trade applications requiring a 1/16 inch punch tip.

Installation Notes

This punch is installed by hand and driven with a hammer or mallet by a qualified mechanic, millwright, or maintenance technician. Always wear appropriate eye protection when striking any punch tool. Ensure the workpiece is securely supported before driving. Do not strike the punch with a hardened steel hammer face against a hardened tip without confirming tool compatibility to avoid chipping.