• Model: 48- 89- 2321. • Red Helix variable helix design for faster drilling. • Series: Red Helix. • Type: Cobalt Drill Bit. • Quantity: 2 drill bits. • Up to 10X longer life vs black oxide drill bits.
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Aerospace-grade HSS : M35 cobalt-enhanced high-speed steel maintains hardness at 600°C, with 3× wear resistance than standard drills. Vertical feeding: Always use drill press vise or maintain 90° angle to avoid needle breakage.
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✅ High-Speed Steel (HSS) Construction – Ensures durability and consistent performance in tough materials. ✔️ Heat & Wear Resistance – Cobalt-infused HSS withstands high temperatures, ensuring longevity and reduced breakage.
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High-quality cobalt drill bit, ideal for unalloyed and alloyed steels, stainless and acid-resistant steels, and difficult materials such as Inconel or titanium. Suitable for hand and pillar drills. Features: - Drill diameter: 4.8 mm - Overall length: 86 mm - Helical flutes: 33° (Type N) - 135° split point for precise centring on all surfaces. - TiN coating in the working area increases service life. Technical Details: - Condition: New - Drill type: Twist drill - Shank: Cylindrical shank - Rotation direction: Right-hand - Diameter: 4.8 mm - Quantity: 1 Important Features: - Ideal for steel and stainless steel - HSS-E with cobalt alloy - TiN coating for durability - 135° point angle - Precise centring, even on round material
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Punte elicoidali HSSE/cobalto - punte elicoidali a scelta da 6,3 - 20 mm - punte elicoidali da 13,5 mm con gambo a gradini fino a 13 mm Le nostre punte elicoidali sono particolarmente stabili e realizzate in acciaio rapido legato al cobalto e trattengono fino a ca. 600°C la loro durezza. Le punte in cobalto rettificate a profilo con concentricità estremamente elevata sono adatte per forare ferro + acciaio e bronzo fino a 1300 N/mm², nonché leghe a base di CrNi ad alta resistenza nonché acciai resistenti alla ruggine, agli acidi e al calore, sul destra con codolo cilindrico secondo DIN 338. Le punte elicoidali con gambo dritto sono adatte per l'uso in allen i mandrini e, grazie alla loro punta divisa (a partire da 2,0 mm), hanno proprietà autocentranti ideali.
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Serie di 19 punte elicoidali cilindriche rettificate in acciaio HSS al COBALTO (HSS-CO 5%). SERIE 19 PUNTE IN ACCIAIO HSS-CO 5% IN CASSETTA. 'BW 415/SP19' BETA WORKER. Serie corta. In acciaio HSS-CO 5%.
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Cobalt drill bits are mainly made of M35 high-speed steel, which is strong, has a long service life, and also contains 5% cobalt for increased wear resistance and durability.The double ended cobalt drill features a 135-degree split point design, which saves time and effort for fast and accurate drilling, no center punch is required, and the cutting edge is finely ground to meet different cutting precision.Double-head design brings double durability, easy to match with other electric drills, such as bench drill, hand drill, impact drill, etc. (not included)It is very suitable for drilling through hard metals such as stainless steel, steel, iron, metal plate and aluminum alloy, plastic, resin plate, wood and other softer materials.
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【High Quality Material】：Made from M35 high speed steel with cobalt for added durability, the Yougfin jobber twist bits are friction and heat resistant. 【135° Split Point】：These cobalt bits have a small point angle of 135° and require less pressure when centering in the material.
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