Punching Bits & Hollow Drills
High-Speed Perforation: Engineered for rapid, clean hole punching in leather, rubber, and synthetics. Hollow Design with Ejection: Hollow-core structure allows waste material (scraps) to be ejected efficiently, preventing tool clogging. Serrated Sharpness: Features a precision-ground serrated edge to cut through tough fibers without pulling or tearing. Universal Shank: Compatible with standard CNC punching modules (Zünd, iEcho, etc.). Material: Made from high-toughness tool steel or carbide for long-lasting edge retention.
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Product Details
Clean Edges for Leather & Gaskets
Zero Tearing, Just Precision. Unlike standard punches, our bits feature a razor-sharp serrated rim. This ensures that even fibrous genuine leather or elastic rubber gaskets are cut cleanly with no frayed edges or burrs.
Non-Clogging Hollow Core
Continuous High-Speed Operation. The hollow-body design is specifically engineered for CNC automation. Scraps are pushed upward through the bit and ejected automatically, allowing the machine to punch thousands of holes without manual cleaning or downtime.
Built for High-Impact Endurance
Impact-Resistant Material. Punching is a high-stress mechanical action. We use specialized, shock-resistant steel that maintains its shape and sharpness under thousands of high-speed vertical impacts per hour.
Tailored Sizes for Automotive & Fashion
From Ventilation to Decoration. We offer a full range of diameters, from 0.5mm to 5.0mm. Whether you are creating ventilation holes for automotive leather seats or decorative Brogue patterns for luxury footwear, we have the exact size you need.
Technical Specifications
Hole Diameter | Shank Diameter | Total Length | Target Materials |
|---|---|---|---|
0.5mm - 1.5mm | 10mm / 16mm / 20mm | 40mm - 60mm | Leather, Textiles, Thin Film |
2.0mm - 3.5mm | 10mm / 16mm / 20mm | 40mm - 60mm | Rubber Gaskets, Automotive Leather |
4.0mm - 5.0mm+ | 10mm / 16mm / 20mm | 40mm - 60mm | Heavy Gaskets, Thick Cardboard |
Custom Engineering & Multi-Brand Compatibility
Beyond our standard range, we support custom design and manufacturing of punching bits for all major equipment brands. Whether you need a specific shank diameter, unique hole geometry, or specialized materials for demanding industrial conditions, OTMAS can provide a tailored solution to fit your exact machine specifications.
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