---
product_id: 18745907
title: "Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16\" to 1/2\" x 64ths"
brand: "precision twist drill"
price: "€ 530.91"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.it/products/18745907-precision-twist-c29r10co-cobalt-steel-jobber-length-drill-bit-set
store_origin: IT
region: Italy
---

# 29 pieces 135° split point Cobalt steel Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths

**Brand:** precision twist drill
**Price:** € 530.91
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Your Way to Perfection!

## Quick Answers

- **What is this?** Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths by precision twist drill
- **How much does it cost?** € 530.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/18745907-precision-twist-c29r10co-cobalt-steel-jobber-length-drill-bit-set)

## Best For

- precision twist drill enthusiasts

## Why This Product

- Trusted precision twist drill brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Range:** Includes 29 bits from 1/16" to 1/2" in 1/64" increments for all your drilling needs.
- • **Standards Compliant:** Conforms to ANSI standards and NAS 907 Type J for professional reliability.
- • **Enhanced Performance:** Bronze oxide finish reduces wear and enhances lubrication on ferrous materials.
- • **Unmatched Durability:** Crafted from cobalt steel for extended tool life, perfect for tough jobs.
- • **Precision Engineering:** Self-centering 135-degree split point for effortless penetration without pilot holes.

## Overview

The Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set is a comprehensive 29-piece collection designed for professionals. Featuring cobalt steel construction for durability, a bronze oxide finish for wear resistance, and a self-centering 135-degree split point for precision drilling, this set meets ANSI standards and is ideal for tackling hard materials with ease.

## Description

Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths

## Features

- Set of 29 jobber length drill bits includes inch sizes 1/16" through 1/2" in 1/64" increments
- Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
- Bronze oxide finish lubricates and provides wear resistance on ferrous materials
- Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
- Drill bits conform to ANSI standards and NAS 907 Type J

## Product Details

- **Material:** Cobalt Steel
- **Cutting Diameter:** 0.5 Inches
- **Finish Type:** Bronze Oxide
- **Shank Type:** Round
- **Cutting Angle String:** 135 Degrees

## Images

![Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths - Image 1](https://m.media-amazon.com/images/I/81c81ftWjbL.jpg)
![Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths - Image 2](https://m.media-amazon.com/images/I/71tCylbuzYL.jpg)
![Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths - Image 3](https://m.media-amazon.com/images/I/61gm4vcyXuL.jpg)
![Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set with Plastic Case, Bronze Oxide Finish, 135 Degree Split Point, Inch, 29 Piece, 1/16" to 1/2" x 64ths - Image 4](https://m.media-amazon.com/images/I/91zaFQow-IL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Precision Drill Set is More than I Requested
*by J***R on January 21, 2014*

The description of the Precision Twist C29R10CO Cobalt Steel Jobber Length Drill Bit Set on the Amazon site was inadequate. There was no description of each drill having a pilot bit and a triangular shank. Since I work primarily in wood, I found that pilot bit tends to pull the bit into the wood too quickly causing tear out. This happens every time with a hand drill. Using a machinist lathe lets me advance the cutting drill bit more slowly resulting in a precision cut hole. The shanks are still being evaluated. However, the shanks on my prior twist drill set were very galled, so much so I had to grind off the metal or turn the galled drill on the lathe.I do not know if the shanks will stand up to drilling metal. In short, I think the drills will work fine for my precision work making custom pool cues.

### ⭐⭐⭐⭐⭐ Good quality
*by T***N on February 1, 2023*

Worth the money.

### ⭐ One Star
*by R***E on September 5, 2017*

Arrived in a "Plastic" drill index not "Metal" as the description stated.

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**Shop now:** [https://www.desertcart.it/products/18745907-precision-twist-c29r10co-cobalt-steel-jobber-length-drill-bit-set](https://www.desertcart.it/products/18745907-precision-twist-c29r10co-cobalt-steel-jobber-length-drill-bit-set)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-26*