---
product_id: 206579451
title: "BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum"
brand: "bosch"
price: "£85.50"
currency: GBP
in_stock: true
reviews_count: 11
url: https://www.desertcart.co.uk/products/206579451-bosch-co14b-14-piece-assorted-set-with-included-case-cobalt
store_origin: GB
region: United Kingdom
---

# 10x lifespan with 8% Cobalt alloy High heat resistance for extended use 14-piece precision set for versatile metal drilling BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum

**Brand:** bosch
**Price:** £85.50
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drill Like a Pro, Last Like a Legend!

## Quick Answers

- **What is this?** BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum by bosch
- **How much does it cost?** £85.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/206579451-bosch-co14b-14-piece-assorted-set-with-included-case-cobalt)

## Best For

- bosch enthusiasts

## Why This Product

- Trusted bosch brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Unmatched Durability:** Engineered with premium M42 Cobalt alloy for 10x longer life than standard bits.
- • **Complete Professional Kit:** 14 assorted sizes in a sleek case, ready to tackle any metalworking challenge.
- • **Heat-Resistant Performance:** Withstands extreme temperatures, keeping sharpness and strength under pressure.
- • **Stable & Accurate Drilling:** Thick web-helix design and split point tip ensure steady, clean penetration every time.
- • **Precision Multi-Material Drilling:** Optimized for stainless steel, titanium, cast iron, aluminum, and light-gauge metals.

## Overview

The BOSCH CO14B 14-Piece Cobalt M42 Drill Bit Set delivers professional-grade durability and precision with its 8% cobalt alloy construction, offering 10x longer life and exceptional heat resistance. Designed for tough metals including stainless steel, titanium, and cast iron, this set features a thick web-helix and surface-hardened tips for stable, accurate drilling. Complete with 14 versatile sizes in a durable case, it’s the ultimate upgrade for serious metalworking pros.

## Description

Bosch Cobalt M42 Metal Drill Bits are engineered with an upgraded M42 alloy, containing 8% cobalt. These hard-core cobalt bits deliver 10X life vs. standard bits and are designed for high heat resistance.
Designed for durability and with high heat resistance for use in stainless steel, cast iron, titanium, light-gauge metal and aluminium.
Fast, accurate starts reduce bit walking on material surface.
10X longer life than standard Cobalt drill bits.
Fast material removal and increased stability.

## Features

- Cobalt M42 drill bit – provides upgraded M42 Cobalt jobber-length bits designed for durability, high heat resistance and Hardened surface for stainless steel, cast iron, titanium, light-gauge metal and aluminum
- Enhanced M42 alloy material – contains 8% Cobalt alloy that delivers 10x life vs. Standard bits
- High-heat resistant bits – withstand high-temperature applications for extended periods of time
- Thick web-helix design – provides additional stability in tough applications
- Surface-hardened tip – penetrates tough abrasive materials.Includes – 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2"

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B07Q9HNTBH |
| Best Sellers Rank | 122,783 in DIY & Tools (See Top 100 in DIY & Tools) 1,045 in Drill Bit Sets |
| Brand | Bosch |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,736) 4.6 out of 5 stars |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 7.94 Millimetres |
| Finish Types | Titanium |
| Global Trade Identification Number | 00000346594591 |
| Included Components | 14 Drill Bits; Case |
| Item Dimensions | 18.3 x 14.2 x 4.6 centimetres |
| Item Type Name | Bosch CO14B 14 pc. Cobalt M42 Drill Bit Set |
| Item Weight | 454 g |
| Manufacturer | BOSCH |
| Manufacturer Part Number | CO14B |
| Material | Cobalt |
| Minimum Bore Diameter | 0.06 Inches |
| Model Number | CO14B |
| Number Of Flutes | 3 |
| Number Of Pieces | 14 |
| Point Style | Split Point |
| Set Name | 14-Piece Cobalt M42 Metal Drill Bit Set |
| Shank Type | Straight |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| Unit Count | 14.0 count |
| Upc | 000346594591 |

## Product Details

- **Cutting angle string:** 135 Degrees
- **Cutting diameter:** 7.94 Millimetres
- **Finish type:** Titanium
- **Material:** Cobalt
- **Shank type:** Straight

## Images

![BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 1](https://m.media-amazon.com/images/I/81Nu8e18JaL.jpg)
![BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 2](https://m.media-amazon.com/images/I/81y3DiSMSWL.jpg)
![BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 3](https://m.media-amazon.com/images/I/511EGCQiKlL.jpg)
![BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 4](https://m.media-amazon.com/images/I/71IV2tYa5lL.jpg)
![BOSCH CO14B 14-Piece Assorted Set with Included Case Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum - Image 5](https://m.media-amazon.com/images/I/81rJQMBWEnL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Length of the bits for each diameter?**
A: "Hi there, please see the following model with diameter and length size of the bits that comes in CO14B;
CO2131 - 1/16"" - 1.875""
CO2132 -  5/64"" - 2.0""
CO2133 - 3/32"" - 2.5""
CO2134 - 7/64"" - 2.625""
CO2135 - 1/8"" - 2.75""
CO2136 - 9/64"" - 2.875""
CO2137 - 5/32"" - 3.125""
CO2139B - 3/16"" - 3.5""
CO4141 -  7/32"" - 3.75""
CO2145 - 1/4"" - 4.5""
CO2147 - 5/16""  - 4.5""
CO2151 - 3/8"" - 5.0""
CO2159  1/2"" - 6.0""
For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST."

**Q: Where is the 5/64" individual bit? (The only one I need to replace, of course!)**
A: You always have to order any single bit or bit replacement separately, unless you can convince the company otherwise.

**Q: Does Bosch make a metric set????**
A: This COB14B Drill bit set is at a standard or imperial measurement. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

**Q: Do either of the sets come with a bit holder? If not, what size bit holder would work?**
A: The CO14B set doesn't come with a bit holder. The bits will work with drills that caters straight shank bits and three-flat shank bits. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7AM-7PM CST.

## Customer Reviews

### ⭐⭐⭐⭐⭐ very good service
*by  on Reviewed in the United Kingdom 18 November 2025*

top class

### ⭐⭐⭐⭐⭐ Cobalt drill bits
*by  on Reviewed in the United Kingdom 11 September 2025*

Quality sharp metal steel drill bits for the workshop. Bosch= Good Quality.

### ⭐⭐⭐⭐⭐ well worth paying a bit more for quality
*by  on Reviewed in the United Kingdom 6 May 2025*

Normally use cheap drill bits but all the ones I had really struggled when drilling out a bolt. These ones made my life so much easier and saved me a lot of time. Always use a bit of cutting oil/spray when drilling metal and these are still sharp after use and hardly a scratch on them.

## Frequently Bought Together

- BOSCH CO14B 14-Piece Assorted Set with Included Case - Cobalt M42 Metal Drill Bits with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, and Light-Gauge Metal
- Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size
- Lubri-Cut Cutting Paste for Drilling Metal - 2 Oz Tub - Made in USA | Beeswax Oil for Metal | High Performance Tapping & Cutting Wax | Saw Blade Lubricant & Drill Fluid

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-02*