YC603 Heavy-Duty Letter Steel Stamp

The YC603 Heavy-Duty Letter Steel Stamp Set is engineered for demanding industrial environments where standard stamps are not sufficient. With a larger, heavier shank compared to standard-grade stamps, the YC603 delivers greater stability, permanent deep impressions, and longer service life under continuous heavy-impact use. It is ideal for steel fabrication, automotive parts marking, heavy machinery identification, pipeline marking, aerospace component traceability, and high-volume industrial production.

 Available in three shank grades:

• YC603H — Heavy shank for general heavy-duty industrial marking
• YC603L — Extra-length shank for deeper reach and better grip control
• YC603R — Maximum shank for the most demanding high-volume production environments

 Key Features 

• 27-piece alphabet set: A–Z plus & symbol
• Material: CR-V (6150) high-carbon chromium-vanadium steel
• Surface treatment: Sandblasting for improved grip and durability
• Font hardness: HRC 58–62 degrees for sharp, long-lasting impressions
• Tail-end hardness: HRC 38–46 degrees to absorb heavy impact and resist mushrooming
• Extra-heavy shank construction for superior stability and resistance to deformation
• Double-beveled face for easy alignment and accurate striking
• Character size and stamp size clearly marked on body for quick identification
• Suitable for hand-held, hammer-struck, and machine applications
• Each set packed in our patented Quick-Access PP plastic storage box
  
  OEM/ODM and custom size inquiries are welcome. Please contact us directly.

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