product description:
Through a special heat treatment, sharp edge, high strength. Can work for 3mm Stainless steel plate and can quickly punching the precise holes in Steel, Stainless Steel,iron, Copper, Brass, Aluminum, Fiberglass, Formica And Other Laminates In Seconds Made from strong HHS high-speed-steel for durability High hardness, fast cutting, wear high temperature High Speed Steel blades set for accurate,fast and precision cutting Endurance blade offers faster cutting and extra long life for hobbyist Hardened steel body ensures straight, accurate cuts Precision ground teeth for perfect finish cut Specification: Size (Outside dia.) :16/18.5/20/25/30mm Material:HSS Package include: 5PCS drill Note: In the process of punching hole, Suggested that adding water cooling to help to extend the service life of the product.
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