Point Larger than Shank Ball Lock Punches - Heavy Duty, Metric

This heavy-duty metric ball-lock punch is used in progressive die sets and stamping/tooling where stable retention of the punch shank is critical during high-cycle blanking. The larger point relative to the shank improves point contact consistency, helping maintain reliable blanking performance as wear develops.

In automotive connector and bracket manufacturing, engineers often require repeated piercing with controlled punch-to-die engagement. The ball-lock geometry supports secure locking in the die set, while the XCD coating is selected to support long-life operation in demanding runs.

For electrical terminal and small metal component forming, tip shape options (H, J, K, L, N, O, R, V, X, Y, Z) allow matching to material thickness and desired shearing behavior. The point length range (L1 = 19–30 mm) also helps tune penetration and part control for different cavity/core engagement depths.

• Secure ball-lock retention for consistent punch operation
• XCD coating for wear resistance in heavy-duty blanking
• Metric compatibility with standard die tool layouts

Material and heat-treatment details are not specified in the provided metadata for this DAYTON XCD-coated ball-lock punch. As a result, this page variant is best treated as an XCD coating–specified tool intended to improve wear performance under heavy-duty blanking conditions.

• XCD coating: referenced for stable, long-life blanking and improved wear resistance during high-cycle piercing and blanking.
• Hardness/toughness trade-off: not stated in the input data; hardness (HRC) and toughness cannot be confirmed without the steel grade/processing specification.
• Comparison to other tool steels: not possible from the current dataset because no alternative steel grades (e.g., SKD11/H13 or equivalent) or process states (e.g., quench & temper, nitriding) are listed.

If you share the steel grade or datasheet for series code 250301837000, the heat-treatment state and expected HRC range can be documented precisely.

To select the correct punch, match the shank diameter (D) and length parameters to your die block and guide system. This metric series offers D = 13, 16, 20, 25, 32, 40 mm, so choose the D that matches your mating die insert/guide bore.

Next, set the overall/tool engagement length using the fixed and variable dimensions. The point length L1 is fixed at 19–30 mm, while L (overall length) is fixed at 80–100 mm. The variable P dimension (13.1–56 mm in multiple ranges) should be selected to align the point-to-locking interface with cavity/core engagement depth in your press layout.

Finally, confirm tip geometry and clearance-driven features: select the required tip shape (H, J, K, L, N, O, R, V, X, Y, Z) and verify the W (1.57–34.73 mm) and R (0.2–28 mm range) dimensions against your die land/relief and required cutting profile.

• Use D to ensure correct fit to guides/inserts
• Use L1 and L to ensure correct engagement and stroke clearance
• Use P/W/R to tune contact geometry for shearing behavior