---
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: "₨52522"
currency: LKR
in_stock: true
reviews_count: 11
category: "Bosch"
url: https://www.desertcart.lk/products/206579451-bosch-co14b-14-piece-assorted-set-with-included-case-cobalt
store_origin: LK
region: Sri Lanka
---

# 10x heat resistance 8% cobalt alloy strength 14-piece versatile set 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:** ₨52522
**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?** ₨52522 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/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

- • **Organized On-the-Go:** Includes a sleek case with 14 assorted sizes for every professional project.
- • **Precision Stability:** Thick web-helix design ensures steady drilling in the toughest metals.
- • **Unmatched Durability:** Engineered with premium M42 cobalt alloy for 10x longer life than standard bits.
- • **Versatile Metal Mastery:** Effortlessly drills stainless steel, titanium, cast iron, aluminum, and more.
- • **Heat-Resistant Performance:** Withstands extreme temperatures without losing sharpness or strength.

## Overview

The BOSCH CO14B 14-Piece Assorted Drill Bit Set features premium M42 cobalt alloy bits with 8% cobalt content, delivering 10x the lifespan of standard bits. Designed for high heat resistance and durability, these bits excel in drilling tough materials like stainless steel, titanium, and cast iron. The set includes 14 precision sizes housed in a durable case, making it the ultimate choice for professionals demanding reliability and performance.

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 44,119 in DIY & Tools ( See Top 100 in DIY & Tools ) 356 in Drill Bit Sets |
| Colour | Solid Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,579) |
| Date First Available | 4 April 2019 |
| Finish | Titanium |
| Included Components | 14 Drill Bits; Case |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | CO14B |
| Manufacturer | BOSCH |
| Material | Cobalt |
| Measurement System | Inch |
| Number of Pieces | 14 |
| Part Number | CO14B |
| Pattern | Solid |
| Power Source | Hand_powered |
| Shape | Rectangular |
| Size | 14 pc. Drill Bit Set |
| Style | Classic |

## 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 Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-08*