---
product_id: 454376067
title: "13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16\"-1/4\""
brand: "gmtools"
price: "KSh4977"
currency: KES
in_stock: true
reviews_count: 13
category: "Gmtools"
url: https://www.desertcart.co.ke/products/454376067-13pcs-cobalt-drill-bits-set-m35-hss-135-degree-tip
store_origin: KE
region: Kenya
---

# 135° Split Point - fast, precise penetration 13-piece Set - versatile sizes 1/16" to 1/4" M35 Cobalt Alloy - 5% Cobalt for max durability 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"

**Brand:** gmtools
**Price:** KSh4977
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Like a Pro, Finish Like a Boss!

## Quick Answers

- **What is this?** 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" by gmtools
- **How much does it cost?** KSh4977 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.ke](https://www.desertcart.co.ke/products/454376067-13pcs-cobalt-drill-bits-set-m35-hss-135-degree-tip)

## Best For

- gmtools enthusiasts

## Why This Product

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

## Key Features

- • **Organized & Portable:** Compact storage case keeps your bits secure and ready for any project on the go.
- • **Unmatched Durability:** M35 high-speed steel with 5% cobalt boosts wear resistance for heavy-duty drilling.
- • **Versatile Size Range:** 13 drill bits from 1/16" to 1/4" cover metals, plastics, wood, and more.
- • **Precision Cutting Edge:** 135° split point design ensures quick, centered drilling with minimal walking.
- • **Effortless Chip Removal:** Twist jobber length flutes clear debris fast, keeping your workflow smooth.

## Overview

The GMTOOLS 13Pcs Cobalt Drill Bits Set features M35 high-speed steel with 5% cobalt for superior hardness and wear resistance. Its 135° split point tip enables fast, precise drilling with reduced walking, while the twist jobber length design ensures efficient chip removal. This versatile set includes 13 sizes from 1/16" to 1/4", suitable for hardened metals, cast iron, stainless steel, plastic, and wood, all neatly stored in a durable case for easy access and portability.

## Description

GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - desertcart.com

Review: decent product so far - working well for the few things I've used them for so far. cut quickly and cleanly. nice metal box to keep them in and organized as well.
Review: Nice, inexpensive set of bits - Nice, inexpensive set of drill bits. They're not very long, so make sure you know what you're getting. They're nice to have as replacements for others that I have broken so they fit my need perfectly. I'm not expecting to drill through diamonds with them...

## Features

- Perfect Drill Bits: Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped
- 135° Split Point & Twist Design: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster
- Enhanced M35 Alloy Material: These drill bits contain 5% Cobalt, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set.
- Set includes: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 13/64, 7/32, 15/64 and 1/4 inch bits; Comes in plastic storage case for easy storage
- QUALITY COMMITMENT: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B5R8P9ST |
| Best Sellers Rank | #5,701 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #11 in Jobber Drill Bits |
| Brand | GMTOOLS |
| Cutting Angle String | 135 Degrees Degrees |
| Cutting Diameter | 0.25 Inches |
| Date First Available | July 1, 2022 |
| Finish Type | Titanium |
| Item Weight | 5 ounces |
| Manufacturer | GMTOOLS |
| Material | High Carbon Steel |
| Number of Flutes | 2 |
| Number of Pieces | 13 |
| Package Dimensions | 4.65 x 3.54 x 1.02 inches |
| Point Style | Split Point |
| Set Name | 13Pcs Cobalt Drill Bits Set |
| Shank Type | Straight |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| Unit Count | 1 Count |

## Product Details

- **Cutting Angle String:** 135 Degrees Degrees
- **Cutting Diameter:** 0.25 Inches
- **Finish Type:** Titanium
- **Material:** High Carbon Steel
- **Shank Type:** Straight

## Images

![13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - Image 1](https://m.media-amazon.com/images/I/81nSHXcK3GL.jpg)
![13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - Image 2](https://m.media-amazon.com/images/I/81UH0nppOVL.jpg)
![13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - Image 3](https://m.media-amazon.com/images/I/51VywQiLK3L.jpg)
![13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - Image 4](https://m.media-amazon.com/images/I/71kUwWTJiQL.jpg)
![13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4" - Image 5](https://m.media-amazon.com/images/I/81ZCtRy18NL.jpg)

## Available Options

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

## Questions & Answers

**Q: These work pretty well as a general bit set for drilling most metals? Is applying oil generally needed on a surface when drilling?**
A: While in trade school many decades ago, they taught us to use cooling for chisels and drill bits, I did dry drilling many times throughout the years, it works; however, cooling will extend the life of the drill bit for sure. One online resource said the following: If you don't cool, the material will harden and the drilling will get tougher. With special cutting oil, you cool both the material and the drill. This makes the drilling faster and more effective. The drill bits also last longer, because they stay sharp. Hope that this answers your question.

**Q: Are cobalt bits better than titanium bits?**
A: Yes. Cobalt is harder and can drill through harder materials such as stainless steel.

**Q: Is the entire bit comprised of the M35 5% cobalt alloy or is the high cobalt steel just on the surfaces?**
A: The entire bit is comprised of the M35 5% cobalt alloy. That is why they should last longer.

**Q: Will this fit in a standard household drill?**
A: Our goal is to provide our customers with the highest quality and service. Yes this M35 HSS Drill Bit will fit just be mindful that this is a straight shank bit.

## Customer Reviews

### ⭐⭐⭐⭐⭐ decent product so far
*by L***E on February 4, 2026*

working well for the few things I've used them for so far. cut quickly and cleanly. nice metal box to keep them in and organized as well.

### ⭐⭐⭐⭐⭐ Nice, inexpensive set of bits
*by T***Y on February 3, 2026*

Nice, inexpensive set of drill bits. They're not very long, so make sure you know what you're getting. They're nice to have as replacements for others that I have broken so they fit my need perfectly. I'm not expecting to drill through diamonds with them...

### ⭐⭐⭐⭐ Worked As I Hoped; But A Little Disappointed!
*by G***3 on September 1, 2024*

I’ve Wanted and Searched For 115 Piece HSS Cobalt Drill Bit Set For More than 5 Years! When Prime Days Came, I Thought I Was Getting a Great Deal, as The Normal Price Was Inflated Compared to What It’s Listed At Right Now! As It Is, I Saved $14! THE GREAT LIE, PRIME DAYS! The Price Was Suppose To Be 35% Below Normal Price, Plus a 10% Coupon! But, I Used the Product the Day After I Got It To Drill Out a Hardened Steel 10mm Bolt in My Engine, That I Managed To Snap Off! It Went through it Like Butter with Cutting Oil! Cleaned Up Easily to Return to It’s Place in the Box! Which Does Seem Pretty Sturdy But, We’ll See How it Holds Up in About 5-10 Years! I’m Wanting These to Be The Last Bits I Ever Buy! But, Like Most, We’ll See How the Smaller Bits Hold Up as They Tend to Snap Easily! At Least That’s Been My Experience Over 40 Years! What I Really Wish They Would Have Done, is Identified The Drill Bit Size, High Lighting 4mm to 12mm or What Ever is The Largest, on The Right Wing! The Bits Are Identified By Size on The Left Wing and The Back! I Don’t Know the Reason, They Couldn’t Provide More Information on The Right Wing Besides A-Z! It Would Make Things So Much Easier! Now I Have to Search The Internet for a Sizing Chart To Identify The Size Associated With The A-Z Drill Bits! Imagine, Having To Go To a Competitor Who Actually Provides Some Help & Insight to Their Customers! I Know There Are Some, That At Least Have a Chart for Download, About the Size of Their Bits, Including The Size of A-Z Bits! As I Said, I’ve Been Searching For a While! This Will Definitely Be On My Mind, If I’m Looking for Other Tools and GM Comes Up At a Possibility!

## Frequently Bought Together

- GMTOOLS 13Pcs Cobalt Drill Bits Set, M35 HSS 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Storage Case 1/16"-1/4"
- Narwhal 1/8 Inch Cobalt Drill Bits (13 Pack - Industrial Grade M35 Cobalt) 2-3/4" Length & 135 Degree Split Point for Drilling Into Metal, Hardened & Stainless Steel, Cast Iron, & More!
- BECOLLO 5/32 Inch Cobalt Drill Bit Set, M35 Jobber Length Twist Drill Bits,Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron,10 Pieces

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*Product available on Desertcart Kenya*
*Store origin: KE*
*Last updated: 2026-03-19*