SKU: 43017071573

Bosch CO14B 14-Piece Cobalt M42 Drill Bit Set 8 Percent Alloy for Stainless Steel High Heat Metal Drilling Surface Hardened Tips Plastic Storage Case

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Description

Bosch CO14B 14-Piece Cobalt M42 Drill Bit Set 8 Percent Alloy for Stainless Steel High Heat Metal Drilling Surface Hardened Tips Plastic Storage CaseUltimate Industrial Drilling Performance: Bosch CO14B 14 Piece M42 8% Cobalt Drill Bit Set When your project demands precision drilling through stainless steel, cast iron, or other high tensile abrasive metals, the Bosch CO14B 14 Piece Cobalt M42 Drill Bit Set provides the industrial grade solution you need. Engineered with an upgraded M42 alloy containing 8% cobalt, these bits are specifically designed to withstand the extreme heat generated by

Ultimate Industrial Drilling Performance: Bosch CO14B 14-Piece M42 8% Cobalt Drill Bit Set

When your project demands precision drilling through stainless steel, cast iron, or other high-tensile abrasive metals, the Bosch CO14B 14-Piece Cobalt M42 Drill Bit Set provides the industrial-grade solution you need. Engineered with an upgraded M42 alloy containing 8% cobalt, these bits are specifically designed to withstand the extreme heat generated by drilling into hardened materials. This advanced metallurgy allows the bits to deliver up to 10X longer life than standard high-speed steel bits, making them the gold standard for fabrication shops, automotive repair, and industrial maintenance. The thick web-helix design provides superior structural stability, significantly reducing bit breakage and "walking" when starting a hole in rounded or uneven surfaces.

Precision is built into every bit in this comprehensive fractional set. The surface-hardened tips are optimized to penetrate tough metals with minimal effort, ensuring clean and accurate holes even during extended drilling sessions in high-heat environments. These bits excel in professional applications where failure is not an option, from drilling through thick-gauge steel plates to managing layered composites. The set is housed in a durable, impact-resistant plastic case that keeps your bits organized and protected from jobsite debris. Whether you are a professional fabricator or a dedicated hobbyist, the Bosch CO14B set provides the thermal resilience and cutting edge retention required to handle the most demanding metalworking tasks with clinical efficiency.

Key Features

  • Upgraded M42 Cobalt Alloy: Formulated with 8% cobalt to provide extreme durability and thermal resistance in abrasive metals.
  • 10X Extended Tool Life: Delivers significantly higher longevity compared to standard HSS bits when drilling through hardened steel.
  • Surface-Hardened Tips: Specifically engineered to penetrate tough materials quickly while maintaining a sharp cutting edge.
  • Thick Web-Helix Design: Increases the structural strength of the bit to reduce breakage and enhance stability under heavy loads.
  • High-Heat Resilience: Rated for high-temperature applications, preventing the bit from softening or dulling during continuous use.
  • Professional Range of Sizes: Includes 14 essential fractional sizes to cover the most common industrial and fabrication drilling needs.

What's Included

  • (14) Bosch M42 8% Cobalt Drill Bits (Various Fractional Sizes)
  • (1) Rugged Plastic Storage Case

Specifications

Brand Bosch
Model Number CO14B
Material M42 Cobalt Alloy (8% Cobalt)
Piece Count 14 Pieces
Application Stainless Steel, Cast Iron, High-Heat Metals
Tip Design Surface-Hardened
Helix Style Thick Web Helix
Heat Resistance High-Temperature Rated
Storage Case Durable Plastic
System Compatibility Standard Three-Jaw Drill Chucks

Pro-Tip: When drilling through stainless steel or other hardened metals, always use a slow RPM setting and apply a high-quality cutting fluid or oil. Cobalt bits are designed to cut through hard materials, but keeping the friction-induced heat to a minimum will ensure the M42 alloy maintains its razor-sharp edge for hundreds of additional holes.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 43017071573

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Danielle
Port Orchard, US
★★★★★ 5
Grateful for chewers!
Color: Purple
Very tough very durable. I have two dogs and they are still not into pieces so really good quality good value for your money.
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Reviewed in the United States on June 10, 2026
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Donnette Ford
Chelsea, US
★★★★★ 4
Great product
Color: Purple, Color: Purple
My dogs loved these toys. Durable and apparently very coveted as my puppers “argued” over who got each one. Kept them playing and chewing for hours. Giving only 4 stars instead because I Wish the size was bigger because I have found that sometimes I don’t see it and stepping on it is Absolutely NO FUN.
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Reviewed in the United States on April 12, 2026
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Gabby
San Leandro, US
★★★★★ 5
Rottweiler approved
Color: Purple
My Rottweiler puppies love these bones. I feel good about letting them play with these and not worry they will break or that they can choke because they are durable and a good size and weight. I like the variety and can put peanut butter on the crevices if I want to give as a treat. Worth the money!
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Reviewed in the United States on June 7, 2026
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Amanda Rogers
Draper, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026
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Stefne
Los Angeles, US
★★★★★ 5
Great for little dogs that like to chew
Color: Hedgehog
Great for my 10 lb chihuahua that loves to chew! Keeps his teeth clean!
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Reviewed in the United States on June 7, 2026

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