---
product_id: 699384825
title: "amoolo Twist Drill Bit 1/4” 10 Pcs, M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron | M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10"
brand: "amoolo"
price: "€ 60.27"
currency: EUR
in_stock: true
reviews_count: 5
category: "Amoolo"
url: https://www.desertcart.hr/products/699384825-amoolo-twist-drill-bit-1-4-10-pcs-m35-cobalt
store_origin: HR
region: Croatia
---

# 135° split point for precision Heat-resistant up to Rockwell 67+ 5% Cobalt for extreme durability amoolo Twist Drill Bit 1/4” 10 Pcs, M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron | M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10

**Brand:** amoolo
**Price:** € 60.27
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill Like a Pro, Last Like a Legend

## Quick Answers

- **What is this?** amoolo Twist Drill Bit 1/4” 10 Pcs, M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron | M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10 by amoolo
- **How much does it cost?** € 60.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/699384825-amoolo-twist-drill-bit-1-4-10-pcs-m35-cobalt)

## Best For

- amoolo enthusiasts

## Why This Product

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

## Key Features

- • **Universal Fit:** Standard 1/4” shank fits most power drills, making upgrades seamless and hassle-free.
- • **Precision at Speed:** 135° split point and fully ground spiral design eliminate walking and reduce friction for faster, cooler drilling.
- • **Unmatched Durability:** M35 cobalt steel boosts strength & lifespan by 5%, built to conquer stainless steel and cast iron effortlessly.
- • **Versatile Powerhouse:** Perfect for hard metals and softer materials alike—wood, aluminum, stainless steel—your all-in-one drill bit set.
- • **Confidence Guaranteed:** Backed by a 90-day warranty and responsive customer support—drill worry-free or get your money back.

## Overview

The amoolo Twist Drill Bit 1/4” 10 Pcs set features M35 cobalt steel with 5% cobalt content, delivering superior heat resistance and durability (Rockwell hardness ≥ 67). Its 135° split point and fully ground spiral design ensure precise, fast drilling with minimal walking and friction. Ideal for hard metals like stainless steel and cast iron, as well as softer materials, this versatile set fits most power drills and comes with a 90-day satisfaction warranty.

## Description

Amoolo M35 Cobalt Twist Drill Bits 1/4" 10 Pcs 【Specifications】 ● Material:High-Speed Steel M35 Cobalt (5% Cobalt) ● Size:1/4”(Dia 6.35mm) x2-3/4”(Flute Length 69.85mm) ● Split Point: 135° ● Process: Fully Ground ● Flute Type: Spiral ● Shank Type: Straight Round Shank ● Applications: Perfectly suitable for Hard Metals, such as Stainless Steel and Cast Iron 【What is M35 Cobalt?】 ● The addition of 5% cobalt increases drill bit’s heat and wear resistance, which makes it perfectly suitable for Stainless Steel and Cast Iron. M35 Cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds. ● While the 5% cobalt makes the bits much more durable,it also makes them more brittle than ordinary HSS bits under improper usage. 【How to use this Drill Bit? Here are some warm tips】 ● Keep the bit vertical and fixation while drilling. ● To avoid drill bit break, 1/16” or smaller bits are suggested used with pin vise. ● Pay attention to the cooling of the bit, adding water or coolant when drilling can increase the life of the bit. 【Warranty: 90 Days】 No worries! Your satisfaction is our ultimate goal. If you have any questions or concerns about our products, please do not hesitate to contact our customer service team support@amoolo.com, we will respond within 12 hours. 【Why choose Amoolo?】 Amoolo - Craft the future! Amoolo is ONE STOP SHOP for ALL TOOL ACCESSORIES. We have years of OEM experience for international well-known brands. We are committed to providing the best quality products at a affordable price. Amoolo is always by your side to craft your desk, living room, home even the future!

Review: Good product - Should work great
Review: Driller 24 trou avec 1 mèche strape stainless 1/16 - Coupe très bien resté surpris

## Features

- 【M35 Cobalt Drill Bit】This drill bit contains 5% Cobalt (M35 Cobalt HSS), which increases the strength, the tool life and makes it more heat-resistant. Rockwell Hardness >= 67.
- 【Fully Ground Process & 135° Split Point】No center punch is needed. Fully ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance. 135° split point with straight shank prevents walking and makes drilling precise and fast
- 【Multiple Application】 M35 Coblat HSS is perfectly suitable for Hard Metals, such as Stainless Steel and Cast Iron. Can be used for Wood, Aluminum Alloy and Other Softer Metals. × NOT for Glass or Ceramic Materials. ×NOT for High Carbon Steel and Heat-Treated Steel. √ Pay attention to speed, pressure and heat control during drilling.
- 【1/4” 10Pcs Twist Drill Bits】10Pcs - 1/4”(Dia 6.35mm) x2-3/4”(Flute Length 69.85mm) Twist Drill Bits.This drill bit fits the majority of power drill currently on the market.
- 【90 Days Warrantyt】If you are not fully satisfied for any reason, please contact us for 100% refund or replacement

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07XMM4CPY |
| Best Sellers Rank | #16,926 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #76 in Power Drill Bit Sets |
| Brand | amoolo |
| Brand Name | amoolo |
| Customer Reviews | 4.4 out of 5 stars 465 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 0.25 Inches |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 0.25 Inches |
| Finish Types | Uncoated |
| Finish type | Uncoated |
| Item Weight | 45 g |
| Manufacturer | amoolo |
| Material | Cobalt Steel |
| Material Type | Cobalt Steel |
| Minimum Bore Diameter | 0.25 Inches |
| Model | AT190214 |
| Number of Pieces | 10 |
| Part Number | AT190214 |
| Shank Type | Round |
| Shank type | Round |
| Surface Recommendation | Glass, Metal, Wood |
| Tool Flute Type | Spiral |
| UPC | 778716244598 |
| Unit Count | 10 Count |

## Product Details

- **Material:** Cobalt Steel
- **Finish type:** Uncoated
- **Shank type:** Round
- **Cutting angle string:** 135 Degrees
- **Brand:** amoolo

## Images

![amoolo Twist Drill Bit 1/4” 10 Pcs, M35 Cobalt Drill Bit Set for Hard Metal, Stainless Steel, Cast Iron | M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10 - Image 1](https://m.media-amazon.com/images/I/8159y081MzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good product
*by J***C on 18 July 2026*

Should work great

### ⭐⭐⭐⭐⭐ Driller 24 trou avec 1 mèche strape stainless 1/16
*by D***L on 2 May 2026*

Coupe très bien resté surpris

### ⭐⭐⭐⭐⭐ good bits
*by P***E on 29 January 2026*

I go through a lot of bits in a year, these bits are as advertised, I've drilled some pretty hard material, these bits are holding up and keeping their edge

## Frequently Bought Together

- amoolo 1/4" Cobalt Drill Bit (10 Pcs), M35 HSS Metal Drill Bits Set for Hard Metal, Stainless Steel, Cast Iron Box of 10
- 1/4-Inch Cobalt Steel M35 Jobber Length Twist Drill Bits for Hard Metal, Stainless Steel, Pack of 12
- RCINDUS (20PCS) 1/8" Cobalt Drill Bit, HSS M35 Metal Drill Bits for Steel, Stainless Steel, Cast Iron, Hard Plastic and Wood

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-20*