Quill Shoulder Punches - RX or HX Coating

Quill shoulder punches are used in injection mold tooling wherever stable punching is needed to form accurate features such as locator holes, ejector through-holes, or venting/support openings. The quill shoulder geometry provides consistent guidance, which helps maintain punch alignment during repeated cycles—especially important when tight dimensional control affects mold assembly and downstream fit.

• Automotive connector and bracket molds: RX or HX coated cutting surfaces support clean hole formation while improving tool life under high production rates.
• Medical device housing molds: The stable quill shoulder motion helps reduce hole eccentricity, supporting repeatability for assemblies that require controlled alignment between plates.
• Appliance and consumer electronics tooling: Select the RX (Al-Cr + nitriding) option when you need balanced wear resistance and stable cutting performance for general punching.

Choose this variant for its selectable high-speed steel equivalents (SKH40 or SKH51) and its coating options (RX/HX) that are suited for maintaining consistent punch performance across production runs.

This punch series uses high-speed steel equivalents in either SKH40 (powdered HSS) or SKH51 (M2). SKH40 is designed for strong wear resistance in punching service, while SKH51 (M2) is a widely used high-speed steel known for balanced toughness and cutting performance.

• RX coating: Al-Cr based coating combined with nitriding treatment to improve surface hardness and abrasion resistance.
• HX coating: a coating optimized for enhanced wear resistance for longer cutting edge life under demanding cycles.

Because exact hardness and heat-treatment temperature are not specified in the provided data, hardness (HRC) must be confirmed per your receiving inspection/CoC. In general, HSS punches trade-off higher wear resistance (often via alloying and surface treatment) against reduced toughness if too aggressively hardened.

Select dimensions by matching the shank and tip features to the mold plate’s punching location and the required hole size and shape. The series provides shank diameter D options of 1.6, 2.0, 2.5, or 3 mm, with a shank diameter tolerance of +0.005/0 and m5 class fit guidance for the mating bore.

• Tip geometry: choose the tip shape (Round, Rectangle, Oblong, Double Flatted Round, Radius Rectangle) that matches the cavity/core feature profile.
• Tip dimension P: use the appropriate P range for your required hole size (e.g., 1–1.59, 1–1.99, 1–2.49, 1–1.97, 1–2.47, or 1–2.97 mm).
• Lengths: set the head/overall geometry using L ranges (30–60, 20–60, 50–80, or 40–80 mm) and LC/LCT/LMT full-length alteration ranges (20–70.1 mm) when customization is required.

For best assembly performance, verify the mating clearance between the punch shank (D) and the tool/guide bore, using the specified +0.005/0 and m5 fit expectations.