Center Dowel Regular Punches - Metric (M2 Steel)

Center dowel punches like this are used in progressive die sets where each station relies on stable, repeatable part registration. They help maintain punch-to-die alignment so strip-fed forming operations stay on tolerance across high cycle counts.

• Automotive connector and terminal progressive dies: The center-dowel locating helps prevent gradual misalignment between feed steps, supporting consistent forming geometry at the tips.
• Sheet-metal bracket and housing stamping: The regular center-dowel style improves locating stability, which is critical when multiple stations shear, pierce, and form in sequence.
• Small precision metal components: Tip shape options (H, J, K, L, N, O, R, V, X, Y, Z) allow you to tune the forming alignment for different material thicknesses and feature profiles.

The supplied M2 steel variant is suited to these applications because it is selected for wear resistance, helping maintain tip geometry and alignment over longer service intervals.

This punch is offered in M2 steel (also available in A2 per the provided options). In common die practice, M2 corresponds to an AISI M2-type high-speed steel family, providing strong wear resistance and good performance where punch tips see repeated contact and abrasive debris.

• Hardness / performance balance: High-speed tool steels like M2 are typically heat treated to achieve high hardness for wear resistance; however, increased hardness can reduce edge toughness under heavy shock loading.
• Heat treatment state: These center punches are manufactured to a hardened tool-steel condition suitable for precision forming/blanking. Specific HRC values and exact heat-treatment steps are not provided in the data.
• Material comparison: M2 is generally selected for longer wear life, while A2 is often chosen when a different toughness/wear balance is preferred for the tool duty cycle.

Select the material based on expected abrasion, cutting load, and the severity of misalignment shocks in the progressive die.

Use the shank and working geometry to match your die set. First, choose D (shank diameter) from the available sizes: 10, 13, 16, 20, 25, or 32 mm, which must fit the corresponding guide/bushing and mating die opening design in your turret/progressive tool.

• Overall length L is fixed at 71 to 150 mm depending on the selected part; ensure the length clears neighbors and supports correct protrusion through the die stack.
• Point length L1 is selectable in ranges: 19 to 25 mm or 25 to 30 mm—use this to set the effective locating/penetration length for your station.
• Tip geometry is selected by tip shape (H, J, K, L, N, O, R, V, X, Y, Z), and the tip profile parameters P (4 to 16 mm), W (4 to 10 mm), and R (0.2 to 4.975 / 6.475 / 7.975 / 9.975 / 12.475 / 15.975) to match the feature you are forming or piercing.

Because specific tolerances are not listed, rely on your die designer’s standard fit rules for dowel/punch guidance, and confirm clearances with the die bushing/receiver dimensions in your CAD stack-up.