Double Stepped Quill Shoulder Punches

This double-stepped quill shoulder punch is used in injection-mold tooling only when a punch-forming operation is integrated into a mold system, such as for post-molding trimming, in-mold forming, or hybrid progressive tooling stations. The double-stepped shank provides stable guidance under load, which helps maintain consistent penetration depth and reduces lateral movement during repeated cycles.

• Progressive stamping / forming toolsets: Suitable where wear at the punch tip and guidance stability are critical; the stepped quill helps keep alignment and improves repeatability across high-duty runs.
• Automotive component tooling: Used for clean, repeatable punch features in thick or abrasive work materials; the hardened steel options support longer service life during heavy-duty punching.
• Industrial appliance housings: Helps maintain dimensional consistency for multi-step features where tight shank fit and controlled tip geometry reduce variation over production batches.

Choose the SKH51/M2 option when higher wear resistance is required; the provided shank fit reference of m5 supports accurate guidance in tooling systems.

Available materials target different wear/toughness needs for heavy punch service. SKH51 (M2 equivalent) is a high-speed steel option known for strong hot-work and wear resistance when properly heat treated. The typical performance focus is higher hardness for longer edge life, balanced against reduced toughness versus lower-alloy options.

• SKH40 (powdered HSS equivalent): Powder metallurgy construction improves carbide distribution uniformity, supporting wear resistance and more consistent material properties.
• SKH51/M2: Commonly specified for hardened service; expect high hardness with excellent wear resistance for repeated punch cycles.

These punches are offered in hardened steel options; select SKH51/M2 when abrasion and edge wear dominate. If your application prioritizes toughness and more forgiving behavior under shock loading, SKH40 can be a suitable alternative. Exact hardness values are not provided in the input data.

Select dimensions by matching the punch guidance and tip geometry to your mold or tooling cavity/core requirements. Use the available shank diameter D options of 1.6, 2.0, 2.5 mm and the specified D tolerance: +0.005/0, m5 reference to achieve controlled fit in the guide/bushing bore.

• Tip dimension P: Choose from the listed ranges—0.3 ～ 1.56 (for D=1.6), 0.5 ～ 1.96 (for D=2.0), or 0.8 ～ 2.46 (for D=2.5)—to match the required punching feature size.
• Overall length L: Select 20 ～ 50 (for the first configuration) or 20 ～ 60 depending on the parameter set; ensure the working tip depth clears the mating die/plate.
• Stepped geometry: Set F (2 ～ 20 or 2 ～ 35) to locate the second-step transition relative to the support surface; B (tip length) is fixed 1 ～ 10 mm.

Confirm full-length alteration limits: LC = 20 ～ 59.9 and the head thickness tolerance-change/alteration constraints (LCT, LMT) to maintain the intended total punch length and stack-up.