---
product_id: 264024593
title: "Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)"
brand: "stroton"
price: "B/.194"
currency: PAB
in_stock: true
reviews_count: 8
category: "Stroton"
url: https://www.desertcart.com.pa/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless
store_origin: PA
region: Panama
---

# 3-5x faster drilling speed vs standard bits 68-70 HRC Rockwell Hardness for heat & wear resistance M42 8% Cobalt Steel for ultimate durability Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)

**Brand:** stroton
**Price:** B/.194
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill Smarter, Not Harder – Own the Metal Game!

## Quick Answers

- **What is this?** Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) by stroton
- **How much does it cost?** B/.194 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless)

## Best For

- stroton enthusiasts

## Why This Product

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

## Key Features

- • **Complete Size Range:** 19-piece set from 1mm to 10mm in 0.5mm increments covers every project need.
- • **Unmatched Durability:** Premium M42 cobalt steel ensures long-lasting performance even on the toughest metals.
- • **Precision Engineering:** 135° split point design delivers clean, chip-free holes with every drill.
- • **Speed Meets Efficiency:** Drill through stainless steel and hard metals up to 5x faster, saving you valuable time.
- • **Cost-Effective Performance:** Despite premium quality, lower cost per hole thanks to extended tool life and superior cutting.

## Overview

The STROTON Metric M42 8% Cobalt Twist Drill Bits Set features 19 precision-engineered bits ranging from 1mm to 10mm, crafted from premium cobalt steel with a 68-70 HRC rating. Designed for stainless steel and hard metals, these bits offer exceptional heat and wear resistance, enabling drilling speeds 3 to 5 times faster than standard bits. The 135° split point ensures clean cuts and long tool life, making this set a must-have for professionals demanding efficiency and durability.

## Description

Buy STROTON Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Good quality - Very good quality
Review: Very good drill bits - Great drill bits. They cut through stainless steel very nicely if you take your time and use a cutting fluid to keep them cool. Had a minor issue with one of the bits snapping (my fault) but the seller took care of the issue immediately and was very responsive.

## Features

- Premium M42 8% Cobalt Steel ,68-70 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
- 3 Steps Design for Cutting through Stainless Steel,Hard Metals,Aluminum,Plastic.
- This Cobalt Drill Bit is Typically Capable of Running Three to Five Times Faster.Despite the Higher Price,the Cost Per Hole When Using Cobalt Drill Bit Will be the Lowest,Since It Can Produce So Many More Holes.
- The Sufficiently Sharp Bit Edge Can Cut the Metal Material into Long Strips of Iron Chips rather than Slowly Grinding Throng the Material with a Blunt Drill Bit.
- 19Pcs 135 Degree Split Point Drill Bits Includes :1mm(length:3.4cm) 1.5mm 2mm 2.5mm 3mm 3.5mm 4mm 4.5mm 5mm(length:8.5cm) 5.5mm 6mm(length:9cm) 6.5mm 7mm 7.5mm 8mm(length:11.5cm) 8.5mm 9mm 9.5mm 10mm(length:13cm) [DIA 0.5mm Increments] .

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MZQMPMC |
| ASIN  | B07MZQMPMC |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #2,389 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Power Drill Bit Sets |
| Color | Grey |
| Customer Reviews | 4.4 4.4 out of 5 stars (4,336) |
| Customer reviews | 4.4 4.4 out of 5 stars (4,336) |
| Date First Available | 2 March 2019 |
| Date First Available  | 2 March 2019 |
| Finish | Uncoated |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Manufacturer | STROTON |
| Manufacturer  | STROTON |
| Material | Cobalt |
| Measurement System | Metric |
| Number Of Pieces | 19 |
| Package Dimensions | 17.6 x 12.5 x 4.4 cm; 453.59 g |
| Package Dimensions  | 17.6 x 12.5 x 4.4 cm; 453.59 g |
| Part number | M42 Cobalt-8(19pcs) |
| Pattern | 1-10mm (19PCS) |
| Size | 1-10mm |

## Product Details

- **Cutting angle string:** 135 Degrees
- **Cutting diameter:** 10 Millimeters
- **Finish type:** Uncoated
- **Material:** Cobalt
- **Shank type:** Straight

## Images

![Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs) - Image 1](https://m.media-amazon.com/images/I/71YyLQiGN8L.jpg)

## Questions & Answers

**Q: Can these drill through a car's trunk without any issues?**
A: These are made to drill through thick hard steel. Thus are very hard and brittle and will break easily if improper angle is applied. For drilling trunk or locks use a titanium bit and buy a few of them as they dull quick but get the job done.

**Q: Bought the 19 pc set; 3mm but broke immediately. Can anyone point me to where I can buy replacement? Thank you.**
A: Hi,I am the seller. You need to click  the blue word [STROTON] in  "Sold by STROTON and Fulfilled by Amazon" below the "Add to Cart" of this Drill bit's listing.
Then click [Ask a question] that write the condtion simply to Establish contact channels with me through Amazon message system.     Then I can handle the follow-up to your order.

Best regards
STROTON

**Q: Can they drill titanium**
A: Honestly,They are good for drilling steel and do the job well.
But Titanium alloy has very high hardness. And We can't guarantee.
If it doesn't work well, you could return it. If it works（Lubricant Must Be Used）, you could share it with other customers.

**Q: What is the length of these bits?**
A: They are average lengths.  The 1mm is 3.4cm and length increase proportionally to the 10mm which is 5.4cm.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good quality
*by J***I on 20 December 2025*

Very good quality

### ⭐⭐⭐⭐⭐ Very good drill bits
*by B***E on 11 July 2025*

Great drill bits. They cut through stainless steel very nicely if you take your time and use a cutting fluid to keep them cool. Had a minor issue with one of the bits snapping (my fault) but the seller took care of the issue immediately and was very responsive.

### ⭐⭐⭐⭐⭐ Very high quality drills
*by C***S on 30 November 2023*

I am a metal worker for 23 years, hard to find any better cobalt drills. Highly recommended.

## Frequently Bought Together

- Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
- Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size
- MACXCOIP Cobalt Drill Bit Set, 115Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box

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**Shop now:** [https://www.desertcart.com.pa/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless](https://www.desertcart.com.pa/products/264024593-metric-m42-8-cobalt-twist-drill-bits-set-for-stainless)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-03-08*