Inch Regular Punch Blanks for Heavy Load

This punch blank stock is used in injection and stamping-adjacent metal tooling where a rigid punch is required for repeated, high-force operations. In punch press setups, it serves as the starting geometry that machinists finish into the final punch form, helping maintain a consistent build across production runs.

• Automotive bracket and connector tooling: select the appropriate shank diameter (D) within the 37–100 in range to match existing guide and tooling layouts, improving alignment under heavy load.
• Industrial enclosure and structural parts: use coded lengths (L) from 200–500 for predictable setup and faster die changeovers.
• High-cycle fabrication cells: the standardized part format and coded inch length support repeatability, reducing variation between batches when the final punch is re-machined.

Because this variant is specified specifically for heavy load tooling and offers flexible D and coded L selection, it’s suited for projects where tool fit and setup consistency directly impact productivity.

The provided specifications define the punch blank geometry (shank diameter and coded inch length), but do not state a steel grade or heat-treatment condition. As a result, the exact hardness (HRC), wear-resistance rating, and whether it is pre-hardened, quenched & tempered, or nitrided cannot be confirmed from the available data.

When selecting material for heavy-load punch applications, engineers typically balance wear resistance (often increased by higher alloying or surface treatments) against toughness (needed to avoid chipping under shock loading). If you share the requested steel grade for this series, we can map the heat-treatment state and expected hardness/tribological trade-offs to your cavity geometry and expected tonnage.

• Geometry: D 37–100 in, L 200–500 (coded)
• Steel/heat treatment: not specified in input

Correct sizing of this punch blank is driven by matching the shank diameter (D) to your tooling’s guide/support system and matching the coded inch length (L) to your die stack height and protrusion requirements.

• Choose shank diameter (D): select a value in the 37–100 in range so the finished punch will fit the guide bores and maintain stability during heavy-load punching.
• Choose coded length (L): select L from 200–500 (coded inch) to align with your expected die height and setup consistency.
• Match to cavity/core workflow: after procurement, the blank is machined to the final working tip geometry; start from D and L that satisfy your guide and overall stack constraints.

Tolerance and fit requirements are not provided in the input data. For critical alignment, confirm the allowable clearance for your guide bushings and punch holder before finalizing D, and verify that the chosen coded L provides the required engagement without excessive overhang.