● Power Tools · Review

Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece

Sponsored link · confirm price and availability on Amazon · updated October 16, 2026

✎ PickHonest Research Desk▦ Updated October 15, 2026◷ 3 min read

As an Amazon Associate I earn from qualifying purchases. Picks are based on manufacturer specs, independent reviews and owner reports.

Best Bosch

Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece

Bosch M42 cobalt at a lower price point than Irwin

View on Amazon

Pros

Bosch M42 cobalt at a lower price point than Irwin
14-piece covers the most common drill sizes
Bosch is a globally respected precision tool brand

Cons

14-piece vs Irw in 29-piece - missing some sizes

Is the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece worth it?

Yes, for the right buyer. The Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece ranks #4 in our Best Drill Bits for Hardened Steel 2026 list (best bosch). Its biggest strength: bosch M42 cobalt at a lower price point than Irwin. The ma in caveat: 14-piece vs Irw in 29-piece - missing some sizes.

Alternatives to the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece

Products ranked near it in our research, each better for a slightly different buyer.

Buying advice: power tools

1Major platforms each cover hundreds of tools. Choose one with the specialty tools you may need later.
2Brushless motors are more efficient and durable. Brushed tools are fine for occasional light use.
3Kits include batteries and a charger. Once you own batteries, bare tools are much cheaper.
412V tools are compact for light work. 18V or 20V max tools handle most home projects. Higher-voltage platforms suit heavy cutting.
5Check tool and battery warranty lengths and whether registration is required.

Read the full guides

DeWALT vs Milwaukee vs Ryobi
Power Tool Buying Guide 2026
Power Tool Not Working

More power tools shortlists

Best Battery-Powered Impact Wrench 2026
Best Drill Bits for Hardened Steel 2026
Best Paint Sprayer for Exterior House 2026
Best Power Tools for Home Improvement 2026

FAQ

Common questions

Is the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece worth buying?

Who is the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece best for?

Based on our research it suits hardened steel 2026. It's ranked #4 of 10 in our Best Drill Bits for Hardened Steel 2026 list.

What are the downsides of the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece?

The ma in trade-offs owners and reviewers point to: 14-piece vs Irw in 29-piece - missing some sizes.

What are the key features of the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece?

M42 cobalt, 14-piece and Bosch quality.

What are the best alternatives to the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece?

Worth comparing: Irw in Cobalt Drill Bit Set 29-Piece, Irw in Cobalt Drill Bit Individual 1/4 Inch and DeWALT DWA1269 Cobalt Drill Bit Set 29-Piece. Each ranks near it in our research for a slightly different buyer.

Where can I buy the Bosch CO14B Cobalt M42 Drill Bit Set 14-Piece?

It's sold on Amazon. Prices and stock change often, so check the current listing before you buy, our link takes you straight to it.