---
product_id: 155840210
title: "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"
brand: "bosch"
price: "₨11062"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/155840210-bosch-co2159b-1-piece-1-2-in-x-6-in
store_origin: LK
region: Sri Lanka
---

# High-heat resistance for tough metals Three-flat shank for superior grip 8% Cobalt M42 Alloy for 10x durability 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

**Brand:** bosch
**Price:** ₨11062
**Availability:** ✅ In Stock

## Summary

> 🔥 Drill Harder, Last Longer – The Ultimate Metal Masterpiece ⚙️

## Quick Answers

- **What is this?** 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 by bosch
- **How much does it cost?** ₨11062 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/155840210-bosch-co2159b-1-piece-1-2-in-x-6-in)

## 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

- • **Grip Like a Pro:** Three-flat shank provides superior bit retention in your drill chuck, reducing slippage and boosting efficiency.
- • **Rock-Solid Stability:** Thick web-helix design ensures fast material removal and steady control in demanding applications.
- • **Unmatched Durability:** Engineered with 8% cobalt M42 alloy delivering 10x longer life than standard bits.
- • **Heat-Defying Performance:** Withstands extreme temperatures, perfect for stainless steel, titanium, and cast iron drilling.
- • **Precision Start Every Time:** Split point design eliminates bit skating—no center punch needed for flawless drilling.

## Overview

The BOSCH CO2159B 1/2 in. x 6 in. Cobalt M42 drill bit is crafted from an enhanced 8% cobalt alloy, offering 10x the lifespan of standard bits. Designed for high-heat resistance and durability, it excels in drilling stainless steel, cast iron, titanium, and light-gauge metals. Featuring a split point tip for easy starts and a three-flat shank for superior grip, this drill bit delivers precision, stability, and long-lasting performance for professional-grade metalworking.

## Description

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

## 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
- Split points on bits 1/8 In. and larger – allow for easy starts with no skating, eliminating the need for a center punch
- Three-flat shank on bits 3/16 In. and larger – deliver better bit grip

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Cobalt |
| Cutting Diameter | 0.5 Inches |
| Finish Type | Titanium |
| Shank Type | 3-Flat |
| Cutting Angle String | 135 Degrees |
| Brand | Bosch |
| Tool Flute Type | Spiral |
| Point Style | Split Point |
| Surface Recommendation | Metal |
| Number of Flutes | 2 |
| UPC | 000346594584 |
| Unit Count | 1.0 Count |
| Global Trade Identification Number | 00000346594584 |
| Manufacturer | BOSCH |
| Part Number | CO2159B |
| Item Weight | 3.84 ounces |
| Item model number | CO2159B |
| Size | 1/2 In. X 6 In. |
| Color | Multi |
| Style | Classic |
| Finish | Titanium |
| Pattern | Solid |
| Shape | Rectangular |
| Power Source | Hand_powered |
| Item Package Quantity | 1 |
| Measurement System | Inch |
| Included Components | (1) 1/2 In. X 6 In. Cobalt M42 Drill Bit |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Product Defects Only |

## Product Details

- **Material:** Cobalt
- **Cutting Diameter:** 0.5 Inches
- **Finish Type:** Titanium
- **Shank Type:** 3-Flat
- **Cutting Angle String:** 135 Degrees

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71A7bULcFIL.jpg)

## Available Options

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

## 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
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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-02*