Bosch CO18 18-Piece Cobalt Twist Drill Bit Assortment in Plastic Case

by Bosch

Product Description

Amazon.com Product Description

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.

Product Description

Bosch CO18 Cobalt Drill Set (18 Pcs.)Bosch Power Tools and Accessories is one of the divisions within the Robert Bosch Tool Corporation, which is one of the largest power tool and accessory manufacturers in the world. Bosch provides a complete line of corded and cordless power tools and accessories engineered to survive any jobsite and allow professionals to take control of their work.Bosch CO18 Cobalt Drill Set (18 Pcs.) Features:; Bosch cobalt drill bits offer the best heat resistance and rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium. ; Cobalt Drill Bit Sets ; Item # CO18; # of Pieces 18; Description 18 pc. set in blow-molded plastic case

Product Details

• Shipping Weight: 9.6 ounces (View shipping rates and policies)
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B0000TZX3A
• California residents: Click here for Proposition 65 warning.
• Item model number: CO18
• Average Customer Review: 4.5 out of 5 stars  See all reviews (13 customer reviews)
• Amazon Best Sellers Rank: #19,483 in Home Improvement (See Top 100 in Home Improvement)

Customer Reviews

Most Helpful Customer Reviews

5 of 5 people found the following review helpful:

5.0 out of 5 stars Cut through steel fast, December 7, 2009

By 

Joseph H. Francis (King George, VA) - See all my reviews
(REAL NAME)   

Amazon Verified Purchase

This review is from: Bosch CO18 18-Piece Cobalt Twist Drill Bit Assortment in Plastic Case (Tools & Home Improvement)

These bits are fantastic. I used one 3/8 inch bit to cut 24 holes in 3/16 steel almost like it was wood -- very fast. No sign of dulling. Excellent bits, but one small one was missing.

5 of 5 people found the following review helpful:

5.0 out of 5 stars very high quality, September 21, 2008

By 

Nikwax (Portland, OR United States) - See all my reviews
(VINE VOICE)   

Amazon Verified Purchase

This review is from: Bosch CO18 18-Piece Cobalt Twist Drill Bit Assortment in Plastic Case (Tools & Home Improvement)

these are very high quality bits, they are sharp and they stay sharp. I notice they have a very steep angle to them which means that they attack the material rather rapidly.

4 of 4 people found the following review helpful:

5.0 out of 5 stars Perfect, February 2, 2011

By 

Nameless Faceless User (Holbrook, NY USA) - See all my reviews

This review is from: Bosch CO18 18-Piece Cobalt Twist Drill Bit Assortment in Plastic Case (Tools & Home Improvement)

I needed to drill a 1/4 inch hole in heavy, thick 10 gauge steel. On a medium speed using a hand drill these bits made short work of it. Very sharp, very clean hole. I was quite impressed - the right tool for the job.