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Cobalt Step Drill Bits

Set of 3

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Drilling is Just a Piece of Cake!

Drill nearly any size of hole with ease using the versatile Cobalt Step Drill Bit Set! Never worry of being not capable to drill holes perfectly, with these drill bits you don't need to hire any workers to drill for you!

The set includes 3 individual drill bits that provide faster and smoother cutting off holes on a variety of materials like brass, wood, plastic, steel, aluminium sheets, and more. Its titanium coating ensures outstanding durability and will stay sharp for years to come.


  • Easy and smooth drilling: each step is clearly labelled with the depth diameter in steps
  • Built to last: the titanium coating can reduce friction and last longer than uncoated bits
  • Hexagonal shank: fit into every power tools like an electric drill and electric screwdriver securely
  • Multiple in one: multiple sized drill bits integrated into one, saving you a lot of time while working
  • Made of high-speed, fully polished, and heat-treated steel
  • Double-fluted design ensures optimum speed and accuracy
  • Suitable for cutting holes in a variety of materials including soft steel, brass, wood, plastic, aluminium copper, gypsum board, metal material, fibreglass, and more
  • Perfect for professional and home use


  • Material: High speed steel
  • Finish: Titanium
  • Shaft Type: Hexagonal shaft
  • Size:
  • 4-12mm Length: Approximately 6.7cm / 2.64"
  • 4-20mm Length: Approximately 7.4cm / 2.91"
  • 4-32mm Length: Approximately 10.2cm / 4.02"

The 3 cutters come in the following sizes:

  • 4-32mm (4mm 4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 24mm 26mm 28mm 30mm 32mm)
  • 4-20mm (4mm 4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm)
  • 4-12mm (4mm 6mm 8mm 10mm 12mm)

Package Includes:

  • Option 1: 1 x4 - 12mm step drill
  • Option 2: 1 x 4 - 20mm step drill
  • Option 3: 1 x 4 - 32mm step drill
  • Option 4: Option 1 - 3