Metal Drill Bit with Brazed Carbide Tip - 7x85 mm

Description

Carbide-Tipped Metal Drill Bit. A metal drill bit with a carbide insert, designed for demanding applications where standard HSS drills are no longer sufficient. Thanks to the use of extremely hard materials, it offers significantly improved durability and cutting performance. Technical Specifications: Diameter: 7 mm, Overall length: 85 mm, Working length: 48 mm, Speed: 1000–1500 rpm, Cutting element: YG8 cemented carbide, Hardness: 90 HRA (~70 HRC), Body: 40CR steel. Product Features: Extreme hardness and durability of the cutting edge. YG8 cemented carbide reaches a hardness of approx. 90 HRA (~70 HRC), which means the cutting edge wears much more slowly, it retains sharpness even during intensive use, and it allows drilling in harder-to-machine materials. This solution is especially appreciated by users working in continuous or serial production. High wear resistance. Compared to standard drill bits, the cutting surface wears down much more slowly, the tool maintains its performance parameters for longer, and the need for frequent drill replacement is reduced. Result: savings in time and operating costs. Stable performance at high temperatures. Drilling in metals generates very high temperatures. Cemented carbide does not lose hardness as quickly as HSS, does not dull due to overheating, and ensures stable cutting even under higher loads. Important operating information: Cemented carbide, in addition to its advantages, also has specific properties: it is hard but brittle, it does not tolerate impacts or hammering action, and it is sensitive to lateral loads and misalignment. Therefore, for best results it is recommended to use stable guidance (e.g. a drill press), avoid “manual angled pressure”, and work with properly selected speed and feed rate.