---
product_id: 403393178
title: "BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit"
brand: "bosch"
price: "$32.41"
currency: USD
in_stock: true
reviews_count: 5
category: "Bosch"
url: https://www.desertcart.us/products/403393178-bosch-co2159b-1-2-in-x-6-in-cobalt-m42
store_origin: US
region: United States of America
---

# 10x lifespan with 8% cobalt alloy High-heat resistance for tough jobs Thick web-helix for max stability BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit

**Brand:** bosch
**Price:** $32.41
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drill like a pro, last like a legend!

## Quick Answers

- **What is this?** BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit by bosch
- **How much does it cost?** $32.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/403393178-bosch-co2159b-1-2-in-x-6-in-cobalt-m42)

## 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

- • **Precision Stability:** Thick web-helix design ensures steady drilling in the toughest materials
- • **Unmatched Durability:** Engineered with 8% cobalt for 10x longer life than standard bits
- • **Enhanced Grip & Control:** Three-flat shank and split point design for superior bit retention and accuracy
- • **Versatile Metal Mastery:** Perfect for stainless steel, cast iron, titanium, and more abrasive metals
- • **Heat-Resistant Performance:** Withstands extreme temperatures without losing edge or strength

## Overview

The BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit is a premium, jobber-length drill bit crafted from an upgraded M42 alloy with 8% cobalt. It delivers 10 times the lifespan of standard bits, excels in high-heat environments, and features a thick web-helix design for enhanced stability. Ideal for drilling through stainless steel, cast iron, titanium, and other hard metals, this bit combines durability, precision, and heat resistance to meet the demands of professional and serious DIY users alike.

## Description

BOSCH Cobalt M42 metal drill bits are engineered with upgraded M42 alloy, containing 8% cobalt. These hard-core Cobalt bits deliver 10x life vs. Standard bits, are jobber length and withstand high-heat applications. The thick web-helix design delivers fast material removal and increased stability. Bits that are 1/8 in. And larger feature a split point; bits 3/16 in. And larger feature a three-flat shank, for better bit grip. These Cobalt drill bits provide superior performance in stainless steel and can be used to drill cast iron, titanium and other hard or abrasive metals.

Review: Quality material.
Review: Was soll Ma da sagen Bosch expert halt Qualität einfach fantastisch 🤩

## 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07Q8DPV56 |
| ASIN  | B07Q8DPV56 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #16,277 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Jobber Drill Bits |
| Color | Multi |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,566) |
| Customer reviews | 4.6 4.6 out of 5 stars (6,566) |
| Date First Available | 7 August 2019 |
| Date First Available  | 7 August 2019 |
| Finish | Titanium |
| Included components | (1) 1/2 In. X 6 In. Cobalt M42 Drill Bit |
| Item Package Quantity | 1 |
| Item Weight | 109 g |
| Item model number | CO2159B |
| Item model number  | CO2159B |
| Manufacturer | BOSCH |
| Manufacturer  | BOSCH |
| Material | Stainless Steel Cobalt |
| Measurement System | Inch |
| Number Of Pieces | 1 |
| Part number | CO2159B |
| Pattern | Solid |
| Power source type | Hand_powered |
| Shape | Rectangular |
| Size | 1/2 In. X 6 In. |
| Style | Classic |

## Product Details

- **Cutting angle string:** 118 Degrees
- **Cutting diameter:** 0.5 Inches
- **Finish type:** Titanium
- **Material:** Stainless Steel Cobalt
- **Shank type:** 3-Flat

## Images

![BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit - Image 1](https://m.media-amazon.com/images/I/71A7bULcFIL.jpg)
![BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit - Image 2](https://m.media-amazon.com/images/I/71drvH6lS9L.jpg)
![BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit - Image 3](https://m.media-amazon.com/images/I/511EGCQiKlL.jpg)
![BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit - Image 4](https://m.media-amazon.com/images/I/71IV2tYa5lL.jpg)
![BOSCH CO2159B 1/2 In. x 6 In. Cobalt M42 Drill Bit - Image 5](https://m.media-amazon.com/images/I/81kS1Q7tB5L.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by W***S on 31 January 2026*

Quality material.

### ⭐⭐⭐⭐⭐ Review
*by M***H on 17 January 2026*

Was soll Ma da sagen Bosch expert halt Qualität einfach fantastisch 🤩

### ⭐⭐⭐⭐⭐ Review
*by J***. on 20 May 2025*

Las mejores brocas, que puedes encontrar en el mercado para perforar, el hierro forjado y el acero inoxidable

## Frequently Bought Together

- BOSCH CO2159B 1-Piece 1/2 In. x 6 In. Cobalt M42 Metal Drill Bit with Three-Flat Shank for Drilling Applications in Stainless Steel, Cast Iron, Titanium, Light-Gauge Metal, Aluminum
- Yellow Paw 1/2 Inch Drill Bit for Metal - Industrial Grade M35 Cobalt with TiAIN Coating - 1/2" Diameter & 6" Length - 4" Working Length - 135 Degree Split Point
- Meccion Cobalt Drill Bit 5/8 Inch High Speed Steel M35 Reduced Shank Twist Drill Bit for Metal, Cast Iron, Stainless Steel, Alloy, Non-Ferrous Etc.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/403393178-bosch-co2159b-1-2-in-x-6-in-cobalt-m42](https://www.desertcart.us/products/403393178-bosch-co2159b-1-2-in-x-6-in-cobalt-m42)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-09*