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Twenty 1/16 inch cobalt twist drill bits in a plastic storage case

Luckyway M35 Cobalt Drill Bit 1/16" 20 Pcs T00113A

SKU CH-DJ8W-C8H6V

Twenty 1/16-inch cobalt drill bits with 135-degree self-centering points and tri-flat shanks for hard metal, wood and plastic

  • TypeDrill Bits
  • MaterialCobalt
  • Compatibility/FitmentMetal
  • Selling Unit1/16" (20Pcs) Cobalt Drill Bits, 20, 20-Piece 1/16"Cobalt Dr
  • Item Count20, 1/16" (20Pcs) Cobalt Drill Bits
  • Commercial/Residential1/16" (20Pcs) Cobalt Drill Bits
  • 20-piece set keeps identical bits ready for repetitive drilling
  • M35 cobalt alloy with 5% cobalt resists heat in hard metals
  • 135° split-point tip self-centres to stop walk-off on contact
  • Tri-flatted shank locks in three-jaw chucks to prevent spin-out
  • Jobber length suits drill presses and most handheld power tools

20-Piece 1/16" Cobalt Drill Bit Set

This Luckyway M35 cobalt drill bit set contains twenty 1/16-inch jobber-length twist bits made from M35 high-speed steel with 5% cobalt. They are designed for drilling hard metals such as stainless steel and cast iron, plus copper, aluminum, wood and plastic. A durable plastic storage case keeps the bits organised and portable. The 135-degree split-point tip enables self-centering to prevent walk-off on hard surfaces.

Who Benefits and Who Needs Alternatives

Metalworkers and DIY users who repeatedly drill 1/16-inch holes in stainless steel, cast iron or other hard alloys gain longer bit life from the cobalt construction. The tri-flatted shank locks securely in three-jaw chucks, reducing spin-out on drill presses and handheld drills. Buyers who require multiple diameters, larger holes or specialized materials such as masonry, glass or hardened tool steel should consider other sets.

M35 Cobalt with 135-Degree Split Point

The decisive specification is the M35-grade steel with 5% cobalt content combined with a 135-degree double rear edge angle. This composition provides the heat resistance and hardness needed for repeated drilling in stainless steel and cast iron without rapid dulling. The split-point geometry ensures immediate centering, while the jobber length and tri-flatted shank fit standard drill presses and power tools.

Highlights

  • 20-piece set keeps identical bits ready for repetitive drilling
  • M35 cobalt alloy with 5% cobalt resists heat in hard metals
  • 135° split-point tip self-centres to stop walk-off on contact
  • Tri-flatted shank locks in three-jaw chucks to prevent spin-out
  • Jobber length suits drill presses and most handheld power tools

Specifications

BrandLuckyway
TypeDrill Bits
MaterialCobalt
Compatibility/FitmentMetal
Selling Unit1/16" (20Pcs) Cobalt Drill Bits, 20, 20-Piece 1/16"Cobalt Drill Bits
Item Count20, 1/16" (20Pcs) Cobalt Drill Bits
Commercial/Residential1/16" (20Pcs) Cobalt Drill Bits
Part NumberT00113A

Questions about this item

Should I buy the 20-piece pack or look for a different count?

This pack supplies 20 identical 1/16" bits, so you get plenty of replacements for a size that wears quickly in hard metal.

How does the M35 cobalt rating affect drilling in stainless steel?

The 5% cobalt M35 steel keeps its hardness at higher temperatures, letting the 135° split point cut stainless and cast iron without premature dulling.

Will the 3-flats shank stop the bit from slipping in my 3-jaw chuck?

Yes, the tri-flatted shank locks into a standard 3-jaw chuck and prevents spin-out even under heavy feed pressure.

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