---
product_id: 45689374
title: "13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case"
brand: "hymnorq"
price: "AR$47712"
currency: ARS
in_stock: true
reviews_count: 13
category: "Hymnorq"
url: https://www.desertcart.com.ar/products/45689374-13-piece-m35-cobalt-drill-bit-set-metric-sizes-1
store_origin: AR
region: Argentina
---

# Precision 1.5mm-6.5mm Sizes in 13pcs Set Superior Heat Resistance for Hard Metals M35 Cobalt Steel - Rockwell 67 Hardness 13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case

**Brand:** hymnorq
**Price:** AR$47712
**Availability:** ✅ In Stock

## Summary

> 🔩 Drill Like a Pro, Last Like a Legend

## Quick Answers

- **What is this?** 13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case by hymnorq
- **How much does it cost?** AR$47712 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.ar](https://www.desertcart.com.ar/products/45689374-13-piece-m35-cobalt-drill-bit-set-metric-sizes-1)

## Best For

- hymnorq enthusiasts

## Why This Product

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

## Key Features

- • **Complete Size Range:** 13 meticulously selected sizes from 1.5mm to 6.5mm, all organized in a sleek indexed case for on-the-go professionals.
- • **Precision Perfected:** 135° split point design prevents walking for fast, accurate drilling every time—no center punch needed.
- • **Unmatched Durability:** Up to 12x longer life than standard HSS bits—built to outlast your toughest projects.
- • **Pro-Grade Reliability:** Crafted for contractors, machinists, and serious DIYers who demand flawless results on hard metals and beyond.
- • **Heat-Defying Performance:** Engineered to withstand extreme temperatures, ensuring consistent cuts through stainless steel and cast iron.

## Overview

The Hymnorq 13-Piece Cobalt Drill Bit Set features M35 grade cobalt steel with 5% cobalt, delivering exceptional hardness (Rockwell 67) and heat resistance. With 13 precision-engineered sizes from 1.5mm to 6.5mm, dual twist flutes, and a 135° split point, these bits excel at drilling hard metals like stainless steel and cast iron. Packaged in a durable indexed case, this set is designed for professionals and serious hobbyists seeking long-lasting, high-performance drilling tools.

## Description

We believe great tools shouldn’t cost a fortune. Since 2017, we’ve been creating reliable, high-quality drill bits and hand tools for makers, builders, and DIYers around the world. From wood and tile drill bits to cobalt bits, chucks, tube expanders, and tapping tools , every product is built to be tough, precise, and easy to use. Our mission is simple: to give you the right tools to get the job done—without compromise. We believe great tools shouldn’t cost a fortune. Since 2017, we’ve been creating reliable, high-quality drill bits and hand tools for makers, builders, and DIYers around the world. From wood and tile drill bits to cobalt bits, chucks, tube expanders, and tapping tools , every product is built to be tough, precise, and easy to use. Our mission is simple: to give you the right tools to get the job done—without compromise. Precision Tools, Built to Last Visit the Store Precision Tools, Built to Last Visit the Store

Review: Excellent set of METRIC bits! - At the time I purchased these, I only intended to use them for light duty (drilling into polymer). However, as fate would have it, I had to use them to drill into hardened steel, and much to my surprise, they performed admirably. It was a pleasant surprise (I was expecting "Chinese junk") and I'm very happy with this purchase; especially considering that it's a METRIC set, which is difficult to find (in the USA). I wish the set had a 1mm bit, but oh well. It's just a preference, not anything against the quality of the bits in this set. ============= Update 1/16/18 ============= My rating has changed from 5 stars down to 3. I needed to drill into metal again--actually I wasn't even drilling new holes, but just "chasing" already existing holes to expand them--and neither the 4.5mm or 4.8mm bits would do anything. They just spun around getting hot, without cutting anything. I even tried the 5mm bit, even though that was too big for my purposes, and it also did nothing but spin. Thus, I've used four of the bits (4, 4.5, 4.8, and 5mm), and only one of them did anything. The one that actually worked did its job well; the others are a HUGE disappointment. ============= Update 1/25/18 ============= Kudos to Migiwata customer service (thank you, Bella!). After hearing about my not-so-pleasant experience with these bits, they sent me a second set. Apparently their original supplier had run dry, and they had to use a second, temporary supplier while the original caught up with demand. The first set that I received was from the temporary supplier. The new set is from the original supplier, and the bits seem to be in order in this new set. So how do you tell the difference? By the case (see photos). The set with the blue dot on the case--which is a plastic retainer to keep the case closed--is from the original supplier. Now if you happen to get a set without the blue dot, don't panic. Just because I got a subpar set that slipped through the manufacturer's quality control process doesn't mean that you did, too. Try the bits out first. WORST case is that Migiwata customer service takes care of you like they did me; best case is you don't even have a problem. As for me and my review of this product, I'm a happy camper again and am bumping my rating back up to 5 stars. The bits are great (make sure to use a good cutting lubricant/coolant) and Migiwata customer service is stellar.
Review: Funny name, good drill bit. - You never know how good or bad a drill bit is going to be till you buy it and try it. Hymnorq M35 Cobalt drill bits have been the real deal for me. I've purchased multi-packs of larger daimeter and smaller diameter Hymnorq M35 Cobalt bits that have worked just as well as these 4.2mm bits. Hymnorq M35 cobalt bits are reasonably priced, cut fast, and stay sharp (I do try to take care of them regarding matching RPM to bit diameter and keeping cutting oil on the bits as much as possible). As long as I can continue to find this family of drill bits, I'll continue to replenish my toolboxes with them.

## Features

- PREMIUM M35 COBALT STEEL – Crafted from High-Speed Steel containing 5% Cobalt (M35 Grade). This hardened alloy ensures superior heat resistance and durability compared to standard HSS bits, measuring up to 67 Rockwell Hardness. Ideal for drilling through tough, high-tensile materials like stainless steel, cast iron, and titanium alloys.
- PRECISION 135° SPLIT POINT – Features a fully ground 135-degree split point geometry that self-centers immediately upon contact. This active cutting tip penetrates faster with less pressure and eliminates "walking" or wandering across the work surface, removing the need for a pre-punch.
- 13-PIECE METRIC SELECTION – Includes a carefully selected range of metric sizes for precision work: 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, and 6.5mm. Note: Includes useful intermediate sizes 3.2mm (approx. 1/8") and 4.8mm (approx. 3/16") for specialized fitting requirements.
- EFFICIENT & CLEAN DRILLING – The fully ground dual twist flute design ejects chips rapidly, reducing friction and heat accumulation. This preserves the drill bit's life and ensures smooth, accurate holes without burrs, even during heavy-duty continuous use.
- ORGANIZED STORAGE – Comes packed in a labeled, durable plastic index case (marked with HSS-drills). The inner holder tilts out for easy access and keeps bits organized by size, making it perfect for transport to job sites or keeping your workbench tidy.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B071ZRMWBN |
| Best Sellers Rank | #14,785 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #7 in Metalworking & Multipurpose Drill Sets |
| Brand | HYMNORQ |
| Brand Name | HYMNORQ |
| Customer Reviews | 4.4 out of 5 stars 2,536 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 Millimeters |
| Finish Type | Bronze |
| Finish Types | Bronze |
| Included Components | 13 pieces of metric cobalt drill bits |
| Item Dimensions | 5.12 x 0.59 x 2.76 inches |
| Item Weight | 0.1 Kilograms |
| Manufacturer | Hymnorq |
| Material | Cobalt Steel |
| Material Type | Cobalt Steel |
| Model | DC023 |
| Number of Flutes | 2 |
| Number of Pieces | 13 |
| Part Number | DC023 |
| Point Style | Split Point |
| Set Name | 13pcs(Plastic Case) |
| Shank Type | Straight |
| Surface Recommendation | Stainless Steel, Brass, Copper, Iron, Aluminum Alloy, Angle Steel, Cast Iron, Wood, Plastic |
| Tool Flute Type | Spiral |
| UPC | 610521863130 |
| Unit Count | 1.0 Count |
| Warranty Description | Seller warranty for 90 days from date of purchase. |

## Product Details

- **Material:** Cobalt Steel
- **Cutting Diameter:** 1.5, 2, 2.5, 3, 3.2, 3.5, 4, 4.5, 4.8, 5, 5.5, 6, 6.5 Millimeters
- **Finish Type:** Bronze
- **Shank Type:** Straight
- **Cutting Angle String:** 135 Degrees

## Images

![13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case - Image 1](https://m.media-amazon.com/images/I/71-BbfYbPlL.jpg)
![13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case - Image 2](https://m.media-amazon.com/images/I/719JlBB4mOL.jpg)
![13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case - Image 3](https://m.media-amazon.com/images/I/61HmBLcFGAL.jpg)
![13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case - Image 4](https://m.media-amazon.com/images/I/81-5cQC6ZcL.jpg)
![13-Piece M35 Cobalt Drill Bit Set, Metric Sizes 1.5mm to 6.5mm, 5% Cobalt HSS for Stainless Steel, Cast Iron & Hard Metal, Fully Ground 135° Split Point with Storage Case - Image 5](https://m.media-amazon.com/images/I/710zRKzE6QL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can these drill bits cut through hardened steel or stainless steel?**
A: Yes. M35 grade steel with 5% Cobalt is specifically engineered for high-tensile metals like stainless steel, cast iron, and titanium alloys. For fully hardened steel (HRC > 50), carbide bits are recommended.

**Q: Will these bits fit my standard cordless drill?**
A: Yes. These feature standard round straight shanks. The largest diameter is 6.5mm, allowing them to fit securely into any standard 3/8-inch (10mm) or 1/2-inch (13mm) drill chuck.

**Q: Do I need to use cutting oil or lubricant?**
A: Highly recommended. While Cobalt is heat-resistant, using cutting fluid significantly reduces friction and heat buildup. This prevents the bit from annealing (softening) and greatly extends its lifespan.

**Q: Do these bits require a center punch to start?**
A: No. These bits feature a 135° Split Point tip. This design is self-centering and cuts immediately upon contact with the metal, preventing the bit from "walking" or skating across the surface.

**Q: Are these bits just coated with Cobalt or solid?**
A: They are solid M35 Cobalt steel throughout, not just coated. Unlike titanium-coated bits that lose effectiveness once sharpened, these maintain their heat resistance and performance even after resharpening.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent set of METRIC bits!
*by J***W on January 1, 2018*

At the time I purchased these, I only intended to use them for light duty (drilling into polymer). However, as fate would have it, I had to use them to drill into hardened steel, and much to my surprise, they performed admirably. It was a pleasant surprise (I was expecting "Chinese junk") and I'm very happy with this purchase; especially considering that it's a METRIC set, which is difficult to find (in the USA). I wish the set had a 1mm bit, but oh well. It's just a preference, not anything against the quality of the bits in this set. ============= Update 1/16/18 ============= My rating has changed from 5 stars down to 3. I needed to drill into metal again--actually I wasn't even drilling new holes, but just "chasing" already existing holes to expand them--and neither the 4.5mm or 4.8mm bits would do anything. They just spun around getting hot, without cutting anything. I even tried the 5mm bit, even though that was too big for my purposes, and it also did nothing but spin. Thus, I've used four of the bits (4, 4.5, 4.8, and 5mm), and only one of them did anything. The one that actually worked did its job well; the others are a HUGE disappointment. ============= Update 1/25/18 ============= Kudos to Migiwata customer service (thank you, Bella!). After hearing about my not-so-pleasant experience with these bits, they sent me a second set. Apparently their original supplier had run dry, and they had to use a second, temporary supplier while the original caught up with demand. The first set that I received was from the temporary supplier. The new set is from the original supplier, and the bits seem to be in order in this new set. So how do you tell the difference? By the case (see photos). The set with the blue dot on the case--which is a plastic retainer to keep the case closed--is from the original supplier. Now if you happen to get a set without the blue dot, don't panic. Just because I got a subpar set that slipped through the manufacturer's quality control process doesn't mean that you did, too. Try the bits out first. WORST case is that Migiwata customer service takes care of you like they did me; best case is you don't even have a problem. As for me and my review of this product, I'm a happy camper again and am bumping my rating back up to 5 stars. The bits are great (make sure to use a good cutting lubricant/coolant) and Migiwata customer service is stellar.

### ⭐⭐⭐⭐⭐ Funny name, good drill bit.
*by T***Y on March 4, 2024*

You never know how good or bad a drill bit is going to be till you buy it and try it. Hymnorq M35 Cobalt drill bits have been the real deal for me. I've purchased multi-packs of larger daimeter and smaller diameter Hymnorq M35 Cobalt bits that have worked just as well as these 4.2mm bits. Hymnorq M35 cobalt bits are reasonably priced, cut fast, and stay sharp (I do try to take care of them regarding matching RPM to bit diameter and keeping cutting oil on the bits as much as possible). As long as I can continue to find this family of drill bits, I'll continue to replenish my toolboxes with them.

### ⭐⭐⭐⭐ Decent budget bits, poorly made case.
*by D***. on September 1, 2025*

The bits themselves are OK, but definitely not on the higher end (also much lower price than high end bits). The case is poorly molded and low quality. Next time, I'd likely elect to buy a more expensive set.

## Frequently Bought Together

- Hymnorq 13-Piece Cobalt Drill Bit Set with Index Case – M35 Grade (5% Cobalt) Steel, 1.5mm to 6.5mm, Dual Twist Flute, 135° Split Point, Ideal for Hard Metals Like Stainless Steel and Cast Iron
- Owl Tools 4.5mm Cobalt Drill Bits - 13 Pack M35 Cobalt Drill Bits with Storage Case - Perfect for Metal, Hardened & Stainless Steel, Cast Iron
- M35 5% Cobalt Metric Drill Bits Set (1mm-10mm/19pcs), Straight Shank Jobber Drill Bits, Metal HSS Twist Drill Bits for Stainless Steel Hard Metal and Cast Iron

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*Product available on Desertcart Argentina*
*Store origin: AR*
*Last updated: 2026-05-16*