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Cobalt Drill Bit Set 29-Piece M35 Cobalt Steel Metal Drill Bits Durable Round Shank Drill Sets for Steel, Wood Plastic Sheet Metal – Includes Practical Cup-Type Holder (29pcs Cobalt)

Quick facts

  • Brand: CaRoller
  • Price: USD 59.97
  • Rating: 4.60 (826 reviews)

If you want one set that covers a wide range of common bit sizes for shop work, home projects, or jobsite use, the CaRoller 29-Piece M35 Cobalt Drill Bit Set is built to be a practical, grab-and-go option. The set uses cobalt steel with an amber coating for durability and wear resistance, and it’s organized in a cup-type round case that clips to a tool belt to help keep your bits close at hand.

Each bit features a 135-degree split point and a fully ground twist design aimed at self-centering starts and cooler drilling by reducing friction. It’s intended for a variety of materials, including stainless steel, cast iron, sheet metal, hard plastics, and wood—making it a versatile pick when you don’t want to swap between multiple sets.

The 29 included sizes range from 1/16″ up to 1/2″ (including fractional 64ths increments), giving you a lot of coverage for pilot holes, step-ups, and general-purpose drilling.

  • 29-piece M35 cobalt steel set with sizes from 1/16″ to 1/2″
  • 135° split point helps self-center and reduces bit walking
  • Amber coating for added wear resistance
  • Round straight shank with spiral flutes and fully ground twist design
  • Portable cup-style holder with built-in clip for belt carry and organization