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M42 Cobalt Drill Bit Set Comparison - June 2026

3 Best M42 Cobalt Drill Bit Set In Canada

1
Best Choice
9.7Exceptional
2
Best Value
9.5Excellent
3
9.3Excellent
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Model

Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set
Model
Metric M42 8% Cobalt Twist Drill Bits for Stainless Steel and Hard Metal(1.5mm-6.5mm/13pcs)
Model
Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

Brand

Bosch
Brand
STROTON
Brand
STROTON

Reviews

4,526 reviews
Reviews
8,410 reviews
Reviews
6,584 reviews

Available On

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Our Top 3 Picks

Here are the top 3 recommended products with more information to help you find the right product for you
  • 9.7
    1
    Bosch

    Bosch CO14B 14 Pc. Cobalt M42 Drill Bit Set

    Why we love it

    Lasts 10 times longer than standard bits.
    Handles high-temperature applications easily.
    Stable and effective in tough materials.
    Main highlights
    • Thick web-helix design – provides additional stability in tough applications
    • Surface-hardened tip – penetrates tough abrasive materials
    • High-heat resistant bits – withstand high-temperature applications for extended periods of time
    • Enhanced M42 alloy material – contains 8% cobalt alloy that delivers 10x life vs. Standard bits
    • Cobalt M42 drill bit – provides upgraded M42 cobalt jobber-length bits designed for durability, high heat resistance and hardened surface for stainless steel, cast iron, titanium
  • 9.5
    2
    STROTON
    30% Off

    Metric M42 8% Cobalt Twist Drill Bits for Stainless Steel and Hard Metal(1.5mm-6.5mm/13pcs)

    Why we love it

    Exceptional durability and lifespan.
    Ideal for hard metals and plastics.
    Fast and efficient cutting.
    Main highlights
    • This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
    • The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
    • Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
    • 3 Steps Desigh for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
    • 13Pcs 135 Degree Split Point Drill Bits Includes :1.5mm 2mm 2.5mm 3mm 3.2mm 3.5mm 4mm 4.5mm 4.8mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm
  • 9.3
    3
    STROTON

    Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

    Main highlights
    • This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
    • The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding through the Material with a Blunt Drill Bit.
    • Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
    • 3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic,and Hard Wood.
    • 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .

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