---
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: "648.94 DT"
currency: TND
in_stock: true
reviews_count: 11
category: "Bosch"
url: https://www.desertcart.tn/products/206579451-bosch-co14b-14-piece-assorted-set-with-included-case-cobalt
store_origin: TN
region: Tunisia
---

# 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:** 648.94 DT
**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?** 648.94 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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

Durable cobalt M42 drill bits designed for high heat resistance and hardened surfaces, ideal for drilling stainless steel, cast iron, titanium, and other tough materials.

Review: very good service - top class
Review: Cobalt drill bits - Quality sharp metal steel drill bits for the workshop. Bosch= Good Quality.

## 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 | 41,533 in DIY & Tools ( See Top 100 in DIY & Tools ) 343 in Drill Bit Sets |
| Brand | Bosch |
| Country Of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,692) |
| 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 | 1 Pounds |
| 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 |
| UPC | 000346594591 |
| Unit Count | 14.0 count |

## 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)

## 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 E***H on 18 November 2025*

top class

### ⭐⭐⭐⭐⭐ Cobalt drill bits
*by M***M on 11 September 2025*

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

### ⭐⭐⭐⭐⭐ well worth paying a bit more for quality
*by G***N on 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 Tunisia*
*Store origin: TN*
*Last updated: 2026-05-08*