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Dear Customers, we will be closed from March 25th to April 1st, 2024. Orders will resume processing and shipping on April 2nd, 2024. Thank you for your understanding.
Dear Customers, We will be closed from March 25th to April 1st, 2024. Orders will resume processing and shipping on April 2nd, 2024. Thank you for your understanding.

Pickardt DO NOT DUPLICATE Special Hand Stamp

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Steel Hand Stamp "DO NOT DUPLICATE"

This professionally-crafted steel Pickardt DO NOT DUPLICATE Special Hand Stamp is ideal for those who need to make a distinctive impression. Constructed from durable steel, it is a high-end, quality product not limited to just locksmiths. Its heavy-duty, 1-piece construction and centered text ensure clear, crisp impressions, giving your mark a professional look.

Often used by, but not limited to, locksmiths, the Do Not Duplicate Hand Stamp is very easy to use. To mark a component with this symbol all that is required to do is strike the stamp with the hammer where you intend to leave the mark.

Speciality locksmith stamps from Pickardt are available for the permanent marking of important information on keys DO NOT COPY, MASTER, DO NOT DUPLICATE.

Not limited to the locksmith industry but also ideal for such as property service departments in large institutions to identify, audit, and control key use or even for the property conscious homeowner who likes to keep track of their keys for any new locks. 

Body measurements (LS = Symbol Height)

LS 1/16" (1.5 mm)

10 x 10 x 80 mm

LS 3/32" (2.5 mm)

10 x 10 x 80 mm


Quality of Steel Hand Stamp "DO NOT DUPLICATE"

We at Pickardt Marking Tools pride ourselves on the quality of our marking tools. Made with carbon steel and hardened by hand, our steel stamps are chemically nickel-plated to provide an extra layer of user safety and protect from rust. These symbol stamps can be used in the most demanding areas such as steel construction, die construction, forging and blacksmithing.

Our Steel Hand Stamps are equally at home in the DIY and hobby sector.

Why quality is important:

Pickardt is all about offering Safety, Reliability and Value.

The number of injuries related to Striking Tools is at a higher percentage than any other tool category without the tool itself adding to the danger.

Pickardt prides itself on offering Tools that are heat treated and so are more durable and long-lasting, and not brittle where shrapnel could cause various injuries with the most severe usually involving the eyes.

Unfortunately, it is impossible to keep people from hitting the tool in the wrong place or missing completely sometimes. To try and safeguard the users hand and fingers from being hit, Pickardt steel stamps are often longer for improved grip or offered with indestructible hand grips on the shank of the tool or even supplied with a separate safety grip.



Steel Stamps are used to mark anything from Aluminum to Stainless Steel, certain leathers, plastics and sometimes wood, with numbers, letters or symbols.

  • Manufactured from special Carbon Steel for more demanding environments
  • Hardened by hand to precise limits to ensure maximum safety in use
  • Sharp faced, exact character engraving using CNC technology
  • Clear positive impressions
  • Bevelled to the engraved face for ease of sighting
  • Chemically Nickel Plated to resist rust
  • Packed in strong Plastic Cases