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Cobalt Step Drill Bits

Save up to 61% Save 26%
Original price $26.97
Original price $26.97 - Original price $86.97
Original price $26.97
Current price $19.97
$19.97 - $33.97
Current price $19.97
Free Shipping
Delivery Time After shipped 3-12 Days
Color: 4-12mm

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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

Delivery Time

Delivery Time = Processing Time + Shipping Time

1.Processing Time:1-2 days

2.Delivery Time:2-10 days(Carrier: USPS)

3.Shipping Time=Processing Time+Delivery Time=About 3-12 days

As for processing time, we may need 1-2 days to prepare your order after placing your order. This is to make sure that your order is accurate. This processing time does not include shipping time. Products will be shipped within 3-12 days.   

Tracking Issues/Returned to Sender
If your tracking is active (showing as in transit, delayed, etc.) and you would like more information on the progress of your order, we recommend that you contact the carrier directly. Carrier information can be found on your tracking email.
Returned to Sender
In some cases, an order may be returned to us for the following reasons: Address was entered/formatted incorrectly at checkout. Order was not collected in time. Additional duties, taxes and other customs fees were left unpaid You will receive a refund for the items within your order once they are received back at our warehouse. Please note that we are unable to reship your order and cannot refund the original shipping charges with the exception of the order being returned to us due to an error on our part.
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  • 12 Months Warranty
  • Easy 30 Days Returns and Refunds
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