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Tool & Equipment


  • The Irwin 29-piece drill bit set contains 1/16-inch to 1/2-inch bits in 1/64-inch increments and a rugged carrying case
  • M35 Cobalt Alloy Steel steel used in these bits withstands high heat and is wear resistant and strong
  • An excellent choice for drilling hard metals such as cast iron and high-alloy or stainless steel
  • 135-degree split point eliminates walking and starts easily
  • 3/8-inch and larger bits have reduced shanks that fit standard 3/8-inch drill chucks
  • Metal case has a protective rubber shell, a tap and die chart and removable bit cartridges.


  • Brand: Irwin
  • Bit Material: Cobalt
  • Bit Sizes: 1/16″ to 1/2″ in 1/64″ increments
  • Bit Type: General Purpose
  • Pieces: 29
  • Package Weight (lbs): 4.75