---
product_id: 680988581
title: "Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron"
brand: "wildbossy"
price: "KD 7.00"
currency: KWD
in_stock: true
reviews_count: 13
category: "Wild Bossy"
url: https://www.desertcart.com.kw/products/680988581-cobalt-drill-bit-set-4-5mm-10pcs-m35-twist-drill
store_origin: KW
region: Kuwait
---

# 135° Split Point - Precision Chip Removal 10pcs Set with Sturdy Storage Case M35 Cobalt Steel Alloy - 67 Rockwell Hardness Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron

**Brand:** wildbossy
**Price:** KD 7.00
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron by wildbossy
- **How much does it cost?** KD 7.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/680988581-cobalt-drill-bit-set-4-5mm-10pcs-m35-twist-drill)

## Best For

- wildbossy enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Organized:** 10-piece set housed in a rugged case for easy transport and quick access.
- • **Unmatched Durability:** M35 cobalt steel blend delivers 17x longer life than standard HSS bits.
- • **Precision Engineering:** 135° split point and gold oxide finish ensure clean, accurate drilling every time.
- • **Versatile Performance:** Effortlessly drills through stainless steel, cast iron, aluminum, and wood.
- • **Trusted Quality Assurance:** Backed by WildBossy’s satisfaction guarantee for professional peace of mind.

## Overview

The WildBossy 10-piece 4.5mm Cobalt Drill Bit Set features M35 high-speed steel with 5% cobalt for exceptional hardness (up to 67 Rockwell). Designed with a 135° split point and gold oxide finish, these bits provide precision, faster chip removal, and durability 17 times greater than standard HSS bits. Ideal for drilling tough metals like stainless steel, cast iron, and aluminum, this set comes in a sturdy case for easy portability and is backed by a satisfaction guarantee.

## Description

Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - desertcart.com

Review: Solid. - solid drill bits.
Review: Good - Decent quality

## Features

- 5% COBALT TWIST DRILL BITS SET】Made from M35 Cobalt Steel with Molybdenum and Cobalt added to form a hardened alloy, can measure up to 67 Rockwell hardness, cut faster, last longer, and last longer than normal HSS drill bits 17 times.
- 【10PCS METRIC DIRLL BITS SET】The set includes 10pcs of M35 4.5MM cobalt steel twist drill bits. Organized in a sturdy plastic storage case for easy transport to your workplace.
- 【TWIST DESIGN AND PERFORMANCE】Precise 135° SPLIT Point, Gold Oxide Surface and Round Straight Shank. Prevents walking and removes chips and particles faster. Precision fully ground to ensure smooth chip movement.
- 【VERSATILE USE】Our M35 Cobalt High-Speed Steel drill bits are ideal for cutting through hard materials like stainless steel, steel, and cast iron, as well as wood, aluminum alloys, and other metals. Please note that they are not suitable for glass or ceramic materials. Pay attention to speed, pressure, and heat control when drilling.
- 【SATISFACTION GUARANTEED】We stand behind the quality of our product. If you have any problems or are not satisfied with our metric drill bit set, please feel free to contact WildBossy for assistance.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D458C5SX |
| Best Sellers Rank | #93,195 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #195 in Jobber Drill Bits |
| Brand | WildBossy |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 4.5 Millimeters |
| Date First Available | May 14, 2024 |
| Finish Type | Gold |
| Item Weight | 3.52 ounces |
| Manufacturer | WildBossy |
| Material | Cobalt Steel |
| Number of Flutes | 2 |
| Package Dimensions | 4.29 x 4.25 x 0.91 inches |
| Set Name | 10pcs 4.5mm Cobalt Drill Bit Set |
| Shank Type | Straight |
| Surface Recommendation | Metal, Wood, Stainless Steel, Cast Iron, Aluminum |
| Tool Flute Type | Straight |

## Product Details

- **Cutting Angle String:** 135 Degrees
- **Cutting Diameter:** 4.5 Millimeters
- **Finish Type:** Gold
- **Material:** Cobalt Steel
- **Shank Type:** Straight

## Images

![Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - Image 1](https://m.media-amazon.com/images/I/5125eIgmuqL.jpg)
![Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - Image 2](https://m.media-amazon.com/images/I/515Bbr8cG5L.jpg)
![Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - Image 3](https://m.media-amazon.com/images/I/51A2gRKT3SL.jpg)
![Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - Image 4](https://m.media-amazon.com/images/I/51T1gxr57EL.jpg)
![Cobalt Drill Bit Set 4.5mm - 10pcs, M35 Twist Drill Bits Straight Shank, 4.5mm High Speed Steel Drill Bits for Drilling in Hard Metal, Stainless Steel, Cast Iron - Image 5](https://m.media-amazon.com/images/I/51m3kelxpML.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Solid.
*by R***L on December 7, 2025*

solid drill bits.

### ⭐⭐⭐⭐⭐ Good
*by T***R on December 14, 2025*

Decent quality

### ⭐⭐⭐⭐ Bits seem fine, but the plastic case is worthless.
*by S***N on January 10, 2025*

I've used the bit for some plastic and aluminum projects and they seem good. However, the plastic flip case broke on the third or forth time opening/closing it and it felt quite flimsy right off the bat. Buy this for the bits, not the storage and you should be ok.

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**Shop now:** [https://www.desertcart.com.kw/products/680988581-cobalt-drill-bit-set-4-5mm-10pcs-m35-twist-drill](https://www.desertcart.com.kw/products/680988581-cobalt-drill-bit-set-4-5mm-10pcs-m35-twist-drill)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-01-22*