---
product_id: 12178725
title: "Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit"
brand: "bosch"
price: "85 kr"
currency: DKK
in_stock: false
reviews_count: 13
url: https://www.desertcart.dk/products/12178725-bosch-co2135-1-8-in-x-2-3-4-in
store_origin: DK
region: Denmark
---

# 135° split point for precise, no-walk starts Withstands up to 1100°F high-temp drilling Thick web design for unmatched stability Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit

**Brand:** bosch
**Price:** 85 kr
**Availability:** ❌ Out of Stock

## Summary

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

## Quick Answers

- **What is this?** Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit by bosch
- **How much does it cost?** 85 kr with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/12178725-bosch-co2135-1-8-in-x-2-3-4-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

- • **Rock-Solid Stability:** Thick, rigid web design ensures maximum bit durability and precision in demanding jobs.
- • **Versatile Metal Master:** Engineered for stainless steel, titanium, cast iron, aluminum, and high-carbon steel drilling.
- • **Heat-Resistant Powerhouse:** Drill through tough metals without overheating—up to 1100°F sustained performance.
- • **Precision Start Every Time:** 135° split point eliminates walking—no center punch needed, saving you time and hassle.
- • **Jobsite Ready Length & Grip:** Full shank with 3-flat design for secure chuck grip and optimal control on every project.

## Overview

The Bosch CO2135 cobalt drill bit is engineered for professionals tackling hard metals. Featuring a heat-resistant cobalt build that withstands temperatures up to 1100°F, a thick web for enhanced stability, and a 135° split point for precise, no-walk starts, this bit excels in drilling stainless steel, titanium, cast iron, and more. Its jobber length and full shank design ensure reliable grip and control, making it a must-have for any serious toolkit.

## Description

Product Description Bosch cobalt drill bits are specially designed for drilling in hard steel. Thick web helix delivers fast material removal combined with increased durability for maximum efficiency and performance. Each bit is manufactured to exacting specifications and features a split point that starts on contact with no walking or skating, eliminating the need for a center punch. From the Manufacturer The Bosch line of metal drill bits offers a solution for every professional application. Each bit is manufactured to exacting specifications and features a 135 Degree split point that starts on contact with no walking or skating, eliminating the need for a center punch.

Review: Great product at a great price ! - Great for hard metals, excellent product.
Review: German Quality - Superior to Milwaukee, used to drill stainless first bit lasted 8 holes. Milwaukee was trash over 2

## Features

- WITHSTANDS HIGH-TEMPERATURE APPLICATIONS FOR EXTENDED PERIODS OF TIME (UP TO 1,100F)
- RIGID, THICK WEB DESIGN ADDS STABILITY TO BIT IN TOUGH APPLICATIONS
- SURFACE HARDENED TO PENETRATE TOUGH ABRASIVE MATERIALS
- AVAILABLE IN JOBBER LENGTH, FULL SHANK
- BEST USED FOR DRILLING INTO LIGHT-GAUGE METAL, HIGH-CARBON STEEL, ALUMINUM AND ALLY STEEL, CAST IRON, STAINLESS STEEL AND TITANIUM

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000AEVY24 |
| Best Sellers Rank | #56,729 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #166 in Jobber Drill Bits |
| Brand | Bosch |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 0.13 Inches |
| Date First Available | July 28, 2017 |
| Finish Type | Steel |
| Global Trade Identification Number | 00000346333473 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.32 ounces |
| Item dimensions L x W x H | 0.15 x 1.8 x 5.8 inches |
| Item model number | CO2135 |
| Manufacturer | Bosch |
| Material | Cobalt |
| Number of Flutes | 2 |
| Number of Pieces | 1 |
| Point Style | Split Point |
| Product Dimensions | 0.15 x 1.8 x 5.8 inches |
| Set Name | Single |
| Shank Type | 3-Flat |
| Surface Recommendation | Stainless,Aluminum,Cast Iron,Metal,Steel |
| Tool Flute Type | Spiral |
| UPC | 000346333473 |
| Unit Count | 1.0 Count |

## Product Details

- **Cutting Angle String:** 135 Degrees
- **Cutting Diameter:** 0.13 Inches
- **Finish Type:** Steel
- **Material:** Cobalt
- **Shank Type:** 3-Flat

## Images

![Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit - Image 1](https://m.media-amazon.com/images/I/21tSyolJiPL.jpg)
![Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit - Image 2](https://m.media-amazon.com/images/I/31dnfT+X-eL.jpg)
![Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit - Image 3](https://m.media-amazon.com/images/I/418mmofiuLL.jpg)
![Bosch CO2135 1/8 in. x 2-3/4 in. Cobalt Drill Bit - Image 4](https://m.media-amazon.com/images/I/61aj-TPF9NL.jpg)

## Questions & Answers

**Q: I have to fasten 3 inch long bolts (5/16 head) into drywall/stud.  Is this drill flute long enough to create a sufficient pilot holes?**
A: Hmmm.... well, I would think if you anchored the shaft with the full 2 3/4 inch cutting screw exposed and sink it into the stud down to the chuck you might have a good pilot hole. The only thing that bothers me is that you said these are BOLTS not screws... so I don't know how much bite they will have to go that last 1/4 inch. so you may have to leave a bit of the shaft exposed to get the full 3" you will need. I hope that helps... hard to answer when I can't see what you are what you are working with.  (I am a visual learner) ;) be safe and stay well.

**Q: Is this drill bit M35 or M42 cobalt?**
A: M42 8% cobalt

**Q: Can i use this for my galaxy pro drills?**
A: They fit any drill

**Q: Would it work with a craftsman drill?**
A: Thank you for your question. The CO2135 Cobalt drill Bit has a rounded shank. If your Craftsman drill accepts round shank bit, then it will work. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from M-F 7a-7p CST.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product at a great price !
*by W***M on August 28, 2025*

Great for hard metals, excellent product.

### ⭐⭐⭐⭐⭐ German Quality
*by J***D on October 5, 2025*

Superior to Milwaukee, used to drill stainless first bit lasted 8 holes. Milwaukee was trash over 2

### ⭐⭐⭐⭐⭐ Works great
*by S***R on December 15, 2025*

Works great

## Frequently Bought Together

- BOSCH CO2135 1-Piece 1/8 in. x 2-3/4 in. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium
- BOSCH CO2133B 1-Piece 3/32 in. x 2-1/4 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 Denmark*
*Store origin: DK*
*Last updated: 2026-02-26*