Dayton LAMINA Point Larger than Shank Regular Ball Lock Punches - Light Duty

These ball-lock punches are used in light-duty metric press tooling where stable punch retention and repeatable positioning are critical. The larger point geometry supports reliable die/punch location, helping minimize drift during frequent stamping cycles.

• Automotive and general metal blanking: Ideal for trimming and blanking operations that require consistent point contact and wear performance. The XNAP-coated working surfaces improve durability under forming friction while maintaining predictable punch behavior.
• Precision forming for small components: Suitable for housings and brackets made from sheet metal or thin stock. The ball-lock retention system supports secure location in the holder, reducing the risk of punch movement that can cause variation in part edges.
• Progressive die stations: Fits well when tool access and quick maintenance matter. Metric shank sizes (D) and defined point length (L1) help engineers integrate the punch with standard ball-lock holders for efficient setup.

Choose this variant when you need dependable light-duty wear resistance and positioning stability across metric press applications.

The provided data specifies an XNAP coating on the punch point and shank working surfaces to enhance wear resistance in forming and stamping. While the base steel grade and heat-treatment state are not listed in the supplied specifications, the coating’s role is to protect the contact geometry against abrasion and frictional degradation.

• Wear vs. toughness trade-off: A wear-focused coating typically improves surface life, but surface protection is most effective within the intended light-duty operating range rather than heavy impact duty.
• Surface stability: XNAP supports consistent punch wear across repeated strokes, helping maintain hole/feature quality in light stamping operations.
• Material comparison note: If an alternate uncoated or differently coated punch is considered, the main differentiator here is the XNAP surface durability for forming contact.

For hardness (HRC) and exact steel heat treatment, confirm the base material certificate for this series.

Select the punch based on the geometry constraints of the ball-lock system and the required point engagement in the die. Use D (shank diameter) first to match your holder: available D values are 13, 16, 20, 25, 32 mm.

• Point length (L1): fixed at 19–30 mm depending on the specific configuration. Match L1 to the die depth and stripper/holder stack-up so the point reaches the intended work contact without bottoming.
• P dimension: choose the correct range for your package and clearance: 13.1–32, 16.1–38, 20.1–40, 25.1–44, 32.1–50 (configuration-dependent). This affects point position relative to the holder.
• Working profile parameters: W is 1.57–27.8 mm and R is 0.2–16 / 0.2–19 / 0.2–20 / 0.2–22 / 0.2–25 mm by selection. These influence contact shape and wear pattern.

The overall length L is fixed at 80–100 mm. If your design is tolerance-sensitive, verify the specific configuration’s dimensional tolerances with the series drawing before finalizing.