We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Ten black cobalt drill bits in indexed storage case

DeWalt 3/16" Cobalt Drill Bit Set 10pcs M35 HSS 135° Tip

SKU CH-BEY2-1W5KZ

Ten-piece cobalt drill bit set in M35 HSS with 135° split-point tips for hardened metal, stainless steel, cast iron, wood and plastics

  • Size/Dimensions40 Pieces
  • MaterialSteel
  • CordlessCorded
  • Color/FinishBlack
  • Item Count12 pack
  • Color FamilyBlack
  • 10-piece set covers repeated drilling tasks
  • M35 cobalt steel with 5% cobalt resists heat and wear
  • 135° split-point tip self-centres for faster penetration
  • Twist jobber length suits hardened metal, stainless steel, cast iron, wood and plastics
  • Index storage case keeps bits organised and protected

What the set contains

This DeWalt set supplies 10 cobalt drill bits, each 3/16 inch in diameter with a 2-5/16 inch flute length. The bits are made from M35 high-speed steel with 5% cobalt for heat and wear resistance. A 135 degree split-point tip reduces thrust and improves chip removal. The package includes 12 packs and an index storage case.

Who this suits and who it does not

The bits handle hardened metal, stainless steel, cast iron, wood and plastics, making them useful for mixed-material jobs. Users who need a wider range of diameters or larger quantities per size should look at other sets. The hex shank fits compatible chucks only, so check your drill before buying.

The specification that decides fit

The critical detail is the 3/16 inch diameter combined with the M35 cobalt construction and 135 degree tip. If your work requires that exact size and the material hardness calls for cobalt alloy, this set matches; otherwise a different diameter or material grade is required.

Highlights

  • 10-piece set covers repeated drilling tasks
  • M35 cobalt steel with 5% cobalt resists heat and wear
  • 135° split-point tip self-centres for faster penetration
  • Twist jobber length suits hardened metal, stainless steel, cast iron, wood and plastics
  • Index storage case keeps bits organised and protected

Specifications

BrandDeWalt
Size/Dimensions40 Pieces
MaterialSteel
CordlessCorded
Color/FinishBlack
Item Count12 pack
Color FamilyBlack
Chuck TypeHex
Batteries IncludedYes
Core Bit Cap ConcreteMetal, 1
FeaturesWidely Use
Part NumberBh2-M35-3/16-10PCS

Questions about this item

Will the M35 cobalt bits need re-sharpening after heavy use?

The M35 cobalt bits can be re-sharpened when edges dull, extending the life of the 10-piece set.

What limits continuous drilling in hardened steel?

Heat buildup in the 3/16" bits is the first limit; the 135° split point reduces thrust but coolant breaks are still needed.

How hot do the bits get during all-day drilling?

The 5% cobalt alloy resists heat better than standard HSS, but the 4.76 mm diameter bits will still warm up under sustained load.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.