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Milwaukee 48892328 31/63" Red Helix Multi-Material Cobalt Drill Bit


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Estimated Dispatch Time: 3-10 days

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Our RED HELIX Cobalt Drill Bits are engineered for extreme durability and longer life in hard metal applications. The MILWAUKEE Cobalt drill bits are designed with a VARIABLE HELIX that includes an aggressive 35° Helix Angle which ends at 15°. The Quad Edge Tip delievers an aggressive tip geometry with four cutting edges for faster drilling, while the Enhanced Tapered Web™ strengthens the bits’ core to increase flute durability. Our cobalt twist drill bits are ideal for tough applications, providing up to 15X life vs. Black Oxide Drill Bits


  • Quad Edge Tip - four cutting edges for faster drilling into hardened materials
  • Quad Edge Tip - creates smaller chips to help prevent from burning out
  • Enhanced Tapered Web - wider core towards the shank of the drill bit
  • Enhanced Tapered Web - helps prevent the bit from breaking towards the shank
  • Variable Helix - aggressive flute geometry for rapid material ejection
  • Cobalt Alloy Construction - Keeps the drill bit from overheating, increasing durability in hard metal
  • 10X Life compared to black oxide drill bits
  • Cobalt Alloy Drill Bits are recommended in material including
  • Wood, PVC, Copper.Aluminium, Duct/Sheet Metal, Angle Iron, Metal, Cast Iron, Stainless Steel and 4140 High Tensile Steel
  • Unlike round shank drill bits, 3-Flat Shank is less likely to slip when under a high load


        • COATING: Cobalt
        • LENGTH: 128mm
        • MATERIAL: Stainless Steel, Cast Iron, HSS Steel, Steel, Wood, PVC & Plastics
        • WIDTH: 31/63"


          • (1) Red Helix Cobalt Drill Bit 31/63" [48892328]

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