Tvardy metal marking punch 125 mm, automatic model T03401 (120 punches)

Tvardy automatic metal marking punch model T03401 is a handheld impact tool with a 125 mm overall length and a ready supply of 120 punches. Designed for permanent mechanical marking of metal surfaces, this marking punch delivers consistent impressions suitable for identification, batch numbering, and part coding in workshops and light production environments. The device operates by delivering a controlled impact to interchangeable punches, creating legible, long-lasting marks on steel and common metals without the need for electricity or chemicals.

Advantages

The automatic mechanism ensures a uniform striking force and repeatable impressions, reducing operator fatigue and improving marking consistency compared with manual pin punches. Its 125 mm length gives comfortable reach and leverage for accurate placement, while the included set of 120 punches provides extended use before replenishment is required. The tool is robustly constructed for repeated impacts and suitable for shop-floor conditions where durable, mechanical marking is preferred.

Suitable for

• Permanent identification of metal parts and components
• Batch and serial numbering in production and repair shops
• Marking steel, iron, and other common metals for traceability
• Workshop use where non-electrical, mechanical marking is required

Key specifications

• Overall length: 125 mm
• Operation: automatic impact mechanism (mechanical)
• Punch supply: 120 punches included
• Marking type: permanent mechanical impressions
• Suitable materials: steel and common metals
• Handheld design for manual operation

How to use

Position the marking punch perpendicular to the workpiece at the desired marking location. Hold the tool firmly and depress the actuator or trigger to engage the automatic impact mechanism; the punch will deliver a controlled blow to create the impression. For repeated marks, maintain consistent positioning and pressure to ensure uniform depth and legibility. Replace punches when worn to preserve mark quality. No power source is required—operation is entirely mechanical.

Usage recommendations

Use on clean, flat surfaces for the most legible impressions. Clamp or secure small parts to prevent movement during marking. Wear appropriate eye protection when stamping metal. For harder alloys, verify a test mark in a non-critical area to confirm punch suitability and adjust technique if necessary.