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

Sale price$38.25 Regular price$42.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 1438 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
Y
Verified Purchase
Yale Alfred
Battle Creek, US
★★★★★ 5
Worth the price
Size: Twin(60" X 80"), Color: Tie Dye Charcoal
Incredibly soft and think
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
C
Verified Purchase
Charles Crowson
Lexington, US
★★★★★ 5
Great Blanket
Size: Twin(60" X 80"), Color: Tie Dye Charcoal
This Blanket feels great! Definitely warm and looks awesome!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
T
Verified Purchase
Tracey W.
Port Orchard, US
★★★★★ 4
Beautiful, but very heavy.
Size: Twin(60" X 80"), Color: Tie Dye Brown
Beautiful and incredibly soft. Label states to wash in cold on gentle, low heat dryer. No dry cleaning. I haven't washed it yet, will update when I do. Of note, it is very heavy for it's size. I purchased the twin size to use as a throw. I don't like any throw size, as it seems they're never long or wide enough for stretching out on the sofa or curling up in a chair to read. It is nice and warm, but not suffocating.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
D
Verified Purchase
DMB
Carnegie, US
★★★★★ 5
Great valur
Size: 2' x 3' (Natural), Color: Gray Tipped
Soft and comfortable. Quality leather nsckrd. Genuine sheepskin. No off odors. I'm skinny and not on tailbone. Hoping this helps. The grey tipped is more of a bluish gray. Pretty but not s true gray.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
O
Verified Purchase
Outdoor Girl
Pawtucket, US
★★★★★ 5
On the fence? This is the sheepskin to get!
Size: 2' x 3' (Natural), Color: Wolf Tipped
I've been reading all the reviews for sheepskins on AMZ and felt this company was the one to go for and WOW did they deliver! The sheepskin came well wrapped but not vacuum packed and is even prettier in person than the pictures. It is super soft, fluffy and dense and mine measured 26" x 40". I absolutely love the wolf tipped colors: ivory, dark grey and a slight brownish hue. There is a slight odor but I don't find it offensive. It stayed put on my leather couch and sitting on it during a Netflix movie was heavenly warm and comfortable. I did not observe any shedding. Will definitely buy another wolf tipped one, once it becomes available as it is worth the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 14, 2026

recommand products