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Description

  • The Enhanced Tip for Demanding Materials:135° point angle is standard for carbide drills bit machining stainless steel, hot working steel < HRC40 and other high hardness steels. This obtuse geometry strengthens the cutting tip, reduces cutting forces, and minimizes carbide drill bit "slioping or walkino" for improved accuracy and drill life
  • Tialsi Coating For Stainless & Hard Steels:TiAlSi coating represents a significant advancement over conventional AlTiN. It features a substantially higher coating hardness of 3,200 HV compared to AlTiN's 2,600 HV, and an elevated oxidation resistance of 1,300°C. This combination, along with its high coefficient of friction, is engineered to withstand the extreme heat and abrasion encountered when drilling stainless steels and high-hardness steel materials
  • YFTOOL 4pcs Carbide Drill Bit Set | Precision For Delicate Work:this solid carbide drill bit set includes 1/16", 1/8", 3/16", and 1/4" drills, engineered for fine and precise drilling. the premium carbide construction ensures exceptional rigidity, guaranteeing tight tolerances within ±0.003mm for demanding applications
  • Optimized Chip Control & Heat Reduction:the strong pumping effect created by the 30° helix angle can quickly expel long and tough chips out of the hole. this feature, combined with the short chips formed by the 135° point angle, fundamentally solves the problem of chip blockage. smooth chip evacuation removes a large amount of cutting heat, effectively controlling the workpiece temperature, and significantly reducing the work hardening phenomenon common on materials such as stainless steel and hard steel
  • 0.4μm K30 Carbide:the foundation of this carbide drill is a k30 grade carbide with an ultra-fine 0.4-micron grain structure. this delivers two key benefits: extreme wear resistance for a longer tool life and superior strength/rigidity to prevent deflection and breakage, ensuring consistent precision in every cut

Carbide Drill Bit Set for Hardened Steel Stainless Steel Hot Working Steel Metal 1/16 3/16 1/8 1/4 Inch 4 Pcs CNC Tungsten Solid Carbide Twist Drill Bits Set 135° Point Angle

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    • No customs duty is charged on orders shipped from our USA, UK, and Australia warehouses. For orders shipped from the India warehouse, all applicable charges are already included in the product price.

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      🎯 Enjoy 10% OFF on Your Order — BUYOHLIC10

      • Shipped today? Order within: Jul 21, 2026 17:00:00 -0500
      Delivery and Shipping

      What is the dispatch time, after placing an order ?

      We usually ship within 1 -2  working days from the date of order confirmation through a real time tracking AWB of Xpressbees, Delhivery, Ekart, DTDC ,Bluedart, Ecom & Shadowfax. The item will be delivered to you within 7-10 working days. In case of international shipping the item will be delivered in 8-12 working days. 

      Is the Inventory readily available ?

      Yes, we only sell products that we have in ready stock for immediate dispatch to our prestigious customers

      What is the condition of the Items being shipped.

      All the items displayed on our website are brand new, unused and are shipped in our original packaging.

      How do I return an Item I purchased from your store ?

      The return process is pretty straight forward. Please refer to the below article to know about our return/ exchange and refund policies 

      Can I send an order to another address ?

      Yes, you can send your order to another address other than your registered address. Either place the ship to address right there at the time of placing the order with us or send us an email immediately after placing an order before we dispatch your order.

      Description

      • The Enhanced Tip for Demanding Materials:135° point angle is standard for carbide drills bit machining stainless steel, hot working steel < HRC40 and other high hardness steels. This obtuse geometry strengthens the cutting tip, reduces cutting forces, and minimizes carbide drill bit "slioping or walkino" for improved accuracy and drill life
      • Tialsi Coating For Stainless & Hard Steels:TiAlSi coating represents a significant advancement over conventional AlTiN. It features a substantially higher coating hardness of 3,200 HV compared to AlTiN's 2,600 HV, and an elevated oxidation resistance of 1,300°C. This combination, along with its high coefficient of friction, is engineered to withstand the extreme heat and abrasion encountered when drilling stainless steels and high-hardness steel materials
      • YFTOOL 4pcs Carbide Drill Bit Set | Precision For Delicate Work:this solid carbide drill bit set includes 1/16", 1/8", 3/16", and 1/4" drills, engineered for fine and precise drilling. the premium carbide construction ensures exceptional rigidity, guaranteeing tight tolerances within ±0.003mm for demanding applications
      • Optimized Chip Control & Heat Reduction:the strong pumping effect created by the 30° helix angle can quickly expel long and tough chips out of the hole. this feature, combined with the short chips formed by the 135° point angle, fundamentally solves the problem of chip blockage. smooth chip evacuation removes a large amount of cutting heat, effectively controlling the workpiece temperature, and significantly reducing the work hardening phenomenon common on materials such as stainless steel and hard steel
      • 0.4μm K30 Carbide:the foundation of this carbide drill is a k30 grade carbide with an ultra-fine 0.4-micron grain structure. this delivers two key benefits: extreme wear resistance for a longer tool life and superior strength/rigidity to prevent deflection and breakage, ensuring consistent precision in every cut

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