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Bosch CO18 18-Piece Plastic Cobalt Drill Bit Set

4.5 out of 5 stars 380 customer reviews

Currently unavailable.
We don't know when or if this item will be back in stock.
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  • Withstands high-temperature applications for extended periods of time (up to 1,100 degrees F)
  • Rigid, thick web design adds stability to bit in tough applications
  • Surface hardened to penetrate tough abrasive materials
  • Available in jobber length, full shank
  • Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium

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All Product Information Customer Q&A's Customer Reviews

From the manufacturer

Drill Bit Type Cobalt Cobalt Black Oxide Black Oxide Titanium Drill Bit Titanium Drill Bits
Model Number CO14 CO21 BL21A BL29 TI21A TI29
# of Pieces 14 21 21 29 21 29

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Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart
Customer Rating 4 out of 5 stars (380) 4 out of 5 stars (182) 4 out of 5 stars (1290) 4 out of 5 stars (62) 4 out of 5 stars (37) 4 out of 5 stars (26)
Price Unavailable $30.47 $19.99 $85.32 $40.84 $97.00
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com Drill Hog
Material Type Cobalt Cobalt steel Cobalt Steel Cobalt Hi-Molybdenum M7 HSS Steel

Product description

Product Description

Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications. Bits 1/8 In. and larger feature a split point that starts on contact with no walking or skating, eliminating the need for a center punch.

Amazon.com

These Bosch cobalt drill bits offer superior heat resistance, plus a rigid thick web design for drilling in extremely hard or abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium.

What's in the Box

  • 1/16-inch bit (2)
  • 5/64-inch bit (2)
  • 3/32-inch bit
  • 7/64-inch bit (2)
  • 1/8-inch bit (2)
  • 9/64-inch bit
  • 5/32-inch bit
  • 11/64-inch bit
  • 3/16-inch bit
  • 7/32-inch bit
  • 1/4-inch bit
  • 5/16-inch bit
  • 3/8-inch bit
  • 1/2-inch bit
  • plastic case


Product information

Technical Details

Technical Specification

Warranty [pdf ]

Additional Information

Warranty & Support

For warranty information about this product, please click here [PDF ]

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Customer Questions & Answers

Customer reviews

Top customer reviews

on October 12, 2011
Verified Purchase
63 helpful votes
64 helpful votes
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TOP 1000 REVIEWERon January 22, 2014
Verified Purchase
11 helpful votes
12 helpful votes
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on August 2, 2015
Verified Purchase
2 helpful votes
3 helpful votes
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on August 18, 2015
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1 helpful vote
2 helpful votes
|
on July 30, 2015
Verified Purchase
1 helpful vote
2 helpful votes
|