Separate pinhole base design allows one-shot penetration. 6 specifications available for easy handling. Stronger drilling ability with new V-shaped needle design, smaller cutting resistance, punching, stainless steel needle, high hardness. Drilling is more accurate with a new distance locator. Side distance is adjustable for improved precision and appearance. Newly developed multi-purpose punch suitable for copper, aluminum, iron, leather, non-woven fabrics, plastic cards, documents, paper, and more. Name: Penetration Punch Specifications: 2 / 2.5 / 3 / 3.5 / 4 / 4.5mm Applicable Materials: Leather, thick cardboard, plastic, etc. Note: Product may vary slightly between batches. Actual product may have minor differences in appearance or color, which does not affect functionality. Color: As shown in picture Material: Metal Package Contents: 1 x Hole Punch Plier (Other accessories not included) Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowance: +/- 1-3 cm.