---
product_id: 7968406
title: "Bosch CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit"
brand: "bosch"
price: "€ 22.72"
currency: EUR
in_stock: true
reviews_count: 8
category: "Bosch"
url: https://www.desertcart.nl/products/7968406-bosch-co2148-21-64-in-x-4-5-8-in
store_origin: NL
region: Netherlands
---

# Split point for no-walk precision Withstands up to 1100°F heat Thick web design for max stability Bosch CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit

**Brand:** bosch
**Price:** € 22.72
**Availability:** ✅ In Stock

## Summary

> ⚙️ Drill Hard, Drill Smart — Own the Metal Game!

## Quick Answers

- **What is this?** Bosch CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit by bosch
- **How much does it cost?** € 22.72 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/7968406-bosch-co2148-21-64-in-x-4-5-8-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

- • **Unmatched Stability:** Rigid, thick web design ensures maximum bit durability and stability in demanding applications.
- • **Versatile Metal Master:** Perfect for light-gauge metal, stainless steel, titanium, cast iron, and high-carbon steel drilling.
- • **Engineered for Efficiency:** Spiral flute design and cobalt material deliver fast material removal and long-lasting performance.
- • **Heat-Resistant Powerhouse:** Drill through the toughest metals without overheating, sustaining up to 1100°F for extended use.
- • **Precision Start Every Time:** Split point tip eliminates walking and skating, so you hit the mark on the first try.

## Overview

The Bosch CO2148 21/64 in. x 4-5/8 in. 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 design for enhanced stability, and a split point tip for precise starts, this drill bit excels in drilling stainless steel, titanium, cast iron, and more. Its spiral flute design ensures fast material removal, making it a reliable choice for demanding metalworking tasks.

## 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 Bosch cobalt drill bits offer the best heat resistance and rigid thick web design for drilling in extremely hard and abrasive materials such as treated stainless steel (precipitation-hardened), cast iron and titanium.

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 | B000AEQQX6 |
| Best Sellers Rank | #38,523 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #17 in Long Length Drill Bits |
| Brand | Bosch |
| Brand Name | Bosch |
| Customer Reviews | 4.7 out of 5 stars 8,002 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 8.33 Millimeters |
| Finish Type | Titanium |
| Finish Types | Titanium |
| Global Trade Identification Number | 00000346333602 |
| Included Components | 1 Bit |
| Item Type Name | 21/64" COBALT SP JOBBER DRILL BIT (CARDED) |
| Manufacturer | Bosch |
| Material | Cobalt |
| Material Type | Cobalt |
| Minimum Bore Diameter | 0.06 Inches |
| Model | CO2148 |
| Number of Flutes | 1 |
| Point Style | Split Point |
| Shank Type | 3-Flat |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| UPC | 000346333602 |
| Unit Count | 1.0 Count |
| Warranty Description | No |

## Product Details

- **Material:** Cobalt
- **Cutting Diameter:** 8.33 Millimeters
- **Finish Type:** Titanium
- **Shank Type:** 3-Flat
- **Cutting Angle String:** 135 Degrees

## Images

![Bosch CO2148 21/64 in. x 4-5/8 in. Cobalt Drill Bit - Image 1](https://m.media-amazon.com/images/I/31ZFTBsKf4L.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## 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 CO2148 1-Piece 21/64 In. x 4-5/8 In. Cobalt Metal Drill Bit for Drilling Applications in Light-Gauge Metal, High-Carbon Steel, Aluminum and Ally Steel, Cast Iron, Stainless Steel, Titanium
- Heli-Coil 5546-8 M8 x 1.25 Metric Coarse Thread Repair Kit

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-27*