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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Chris White
Draper, US
★★★★★ 4
Good Tool
Size: One Size, Style: Bottle Opener
This thing is great at opening bottles, and it has a Klein handle. Perfect for the electrician in your life, even if that's yourself. I had to knock off a star because the handle is not quite as good as other Klein tools. The plastic is not as clear. The TIP-IDENT bottlecap marking is off-center and not fully printed. The bottle opener sticks out at a slight angle. This does not affect the performance, but it does detract from the novelty somewhat.
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Reviewed in the United States on March 10, 2023
A
Verified Purchase
Amanda L. Day
New York, US
★★★★★ 5
expands work space effectively
Initially it was a bit challenging to set up as I was not fortunate enough to have assistance (the instructions tell you that you need two people for part of the installation process). I also had to play around with placement a bit as my available installation space was extremely limited and neither of the listed/'suggested mounting situations worked for me; however, with some head-scratching and debating with myself, I finally figured how to make it work how and where I needed it it, and all was good!! It functions well, and holds adequate weight, and looks really good with the light lacquer finish...the only thing I will say to a potential buyer is to make sure you have room to walk past it easily when its closed down because it still sticks out a few inches even when closed down...overall, very happy with this item and would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2014
M
Verified Purchase
mike litchfield
Pawtucket, US
★★★★★ 5
Works great
Is there a little expensive but they work great to add counter space. My wife liked it so much I bought a second one.
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Reviewed in the United States on June 11, 2026
P
Verified Purchase
Placeholder
Draper, US
★★★★★ 4
Looks great.
Nice quality with sturdy hardware. Size could be a little larger.
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Reviewed in the United States on August 30, 2025
S
Verified Purchase
Stephanie Adams
Belleville, US
★★★★★ 5
Great addition to my sewing table!
I ordered two of these to give me a little more room on my sewing table. One for the backside and one for the left side. Worked out great! Very sturdy and not hard to install (followed directions). I just extended when I need room and fold when not in use. I would recommend these to anyone who just needs a little more table/room.
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Reviewed in the United States on May 12, 2020

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