Metal Number Stamp | Cr-V Steel Number Punch Set | Hardened Steel Marking Tool | Industrial Number Stamping Kit

Product Description

This metal number stamp set is made from high-quality chromium-vanadium steel with overall high-frequency quenching, achieving a Rockwell hardness of 60–62 for outstanding wear resistance and impact performance. The precisely machined hardened heads produce clear, consistent number impressions with uniform depth on metal surfaces. Supplied in a sturdy ABS plastic storage case for organized storage and easy portability, it is the ideal marking tool for machining, automotive repair, hardware manufacturing, asset management, and more.

Features

· Durable material: Made of high-quality chromium-vanadium steel with overall high-frequency quenching, achieving a Rockwell hardness of 60–62 for long-lasting use.

· Precise stamping: Hard steel heads create clear, consistent number impressions with controlled font height and depth.

· Convenient storage: Comes with a sturdy ABS plastic case for organized storage and easy portability.

Applications

Machinery manufacturing & part numbering

Automotive repair & modification (VIN marking, part identification)

Hardware products & tool marking

Metal sheet, pipe, and angle steel marking

Mold making & numbering management

Equipment asset numbering & management

Construction steel structure marking

Jewelry & metal craft engraving (with appropriate force control)

Applicable materials: carbon steel, stainless steel, aluminum alloy, copper, brass, plastics, etc. (adjust striking force according to material hardness).

Why Choose Us

Professional Manufacturing: Years of experience in steel stamp production with mature material selection and heat treatment processes.

Strict Quality Control: Each set undergoes hardness testing, trial stamping, and visual inspection to ensure reliable quality.

Cost-Effective: Industrial-grade quality at a competitive price — an ideal alternative to expensive imported punches.

Reliable Supply: Ample inventory and fast delivery for bulk orders to meet continuous procurement needs.

Attentive Service: Usage guidance, selection advice, and after-sales support for worry-free purchasing.

FAQ

Q1: What numbers are included in a set?

A1: The standard set includes digits 0–9 (10 pieces). If you need additional duplicates, letters, or symbols, please contact us for customized combinations.

Q2: Can it stamp stainless steel?

A2: Yes. The punch heads have high hardness (HRC 60–62) and can stamp stainless steel surfaces. For very hard stainless steel, increase striking force appropriately and ensure the workpiece is firmly secured.

Q3: Will the punches rust?

A3: Cr-V steel punches usually have anti-rust treatment (such as black oxide or oil coating). Wipe clean after use and apply rust-preventive oil for long-term storage.

Q4: How to use properly?

A4: Place the workpiece on a hard, flat surface. Hold the punch vertically against the marking position and strike the top with a hammer vertically, maintaining even force. Avoid tilting the punch, which may cause blurry characters or damage.

Q5: Do you support customization?

A5: Yes, OEM/ODM customization is available, including font style, character size, number combinations, logo engraving, and packaging. Please contact us for details.

OEM / ODM (Optional)

We offer flexible OEM/ODM customization services:

Custom fonts: different font styles, sizes, and depths

Custom character combinations: digits, letters, symbols, and special marks

Custom dimensions: punch length, shank diameter, head diameter

Surface treatment: black oxide, chrome plating, zinc plating, etc.

Custom packaging: box, bag, blister packaging, customer-branded packaging

Sample making and mass production

Drawings or samples are welcome. We will provide professional solutions based on your requirements.