RUKO 2140725 - Pack de 10 brocas helicoidales DIN 338, tipo N HSS, fresada-rectificada, con autocentrado (Ø 7,25 mm)

Ruko Din 338 Hss Ground Self-centering Helical Ø 7.25 Mm Metal Drill Bit 10 Units. RUKO DIN 338 HSS Ground Self-Centering Helical Ø 7.25 mm Metal Drill BitAchieve unparalleled precision and efficiency in your metalworking projects with the RUKO DIN 338 HSS Ground Self-Centering Helical Drill Bit. This high-performance drill bit is expertly engineered for professionals and craftsmen who demand reliability and accuracy. Suitable for all types of drills in common materials, this 7.25 mm bit is the definitive choice for creating clean, exact holes with minimal effort. Its fully ground body from a single piece of high-speed steel ensures exceptional concentricity and rotational accuracy, reducing vibration and leading to superior results and extended tool life.The standout feature of this individual drill bit is its advanced point geometry. It features a taper point grinding with a split point meticulously shaped according to DIN 1412 C. This self-centering tip engages with the metal workpiece immediately, preventing the bit from walking and eliminating the need for pre-punching or a pilot hole. This allows for faster, more aggressive, and significantly more accurate drilling from the very start. The design, incorporating a standard N-form point, is optimized for good centering and requires lower feed pressure, reducing user fatigue and wear on your electric tool.Engineered for versatility, this standard twist drill bit demonstrates robust performance across a wide array of demanding applications. Its right-hand cut and optimized 20-30º spiral angle ensure efficient chip evacuation, preventing clogging and overheating while maintaining a clean cut. The cylindrical shank, manufactured to a precise h8 diameter tolerance, guarantees a secure and wobble-free fit in standard drill chucks, maximizing power transfer for professional work on metal and plastics. With a bright surface finish, this bit is built for consistent performance in any professional setting.Technical Specifications:* Type: High-performance standard twist drill bit* Material: HSS High-Speed Steel* Diameter: 7.25 mm* Standard: DIN 338* Point Geometry: Taper point grinding with split point according to DIN 1412 C* Point Angle: 118°* Spiral Angle: 20-30º* Diameter Tolerance: h8* Shank: Cylindrical* Cutting Direction: Right-hand cut* Surface: Bright* Drilling Depth: 5 x diameterIdeal Applications:This high-performance drill bit is suitable for drilling in a vast range of materials, including:* Alloyed and unalloyed steel and cast steel (up to a tensile strength of approx. 900 N/mm²)* Grey cast iron, malleable cast iron, and nodular cast iron* Die-cast iron and sintered iron* Alpaca (nickel silver) and graphite cast iron* Aluminium alloys* Bronze and brass. tradeinn Bricoinn

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