---
product_id: 321471947
title: "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"
brand: "hymnorq"
price: "₱1961"
currency: PHP
in_stock: true
url: https://www.desertcart.ph/products/321471947-13-piece-cobalt-drill-bit-set-with-index-case-m35
store_origin: PH
region: Philippines
---

# Dual twist flute for efficient chip removal 135° split point for self-centering precision M35 cobalt steel, Rockwell 67 hardness 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

**Brand:** hymnorq
**Price:** ₱1961
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** 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 by hymnorq
- **How much does it cost?** ₱1961 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/321471947-13-piece-cobalt-drill-bit-set-with-index-case-m35)

## 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

- • **Precision Every Time:** 135° split point design eliminates walking, ensuring clean, accurate holes with less effort.
- • **Unmatched Durability:** Crafted from M35 cobalt steel with 5% cobalt for up to 12x longer life than standard bits.
- • **Complete Metric Range:** 13-piece set from 1.5mm to 6.5mm covers all your metalworking needs in one sleek case.
- • **Pro-Level Portability:** Compact indexed case keeps your bits organized and ready for any job, anywhere.
- • **Smooth & Fast Drilling:** Dual twist flute optimizes chip removal, reducing heat and boosting cutting speed.

## Overview

The Hymnorq 13-Piece Cobalt Drill Bit Set features premium M35 grade cobalt steel with 5% cobalt, delivering exceptional heat resistance and durability. Its 135° split point ensures self-centering precision, while the dual twist flute design enhances chip removal for faster, smoother drilling. With sizes from 1.5mm to 6.5mm neatly organized in a portable index case, this set is engineered for professionals tackling hard metals like stainless steel and cast iron.

## Description

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

## Features

- COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, extremely heat resistant; for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
- NO CENTER PUNCH NEEDED - The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
- 13PC METRIC BITS - The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm. Well organized in a plastic indexed storage case for easy transport to your worksite.
- FOR METALWORKING - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
- DOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. In most cases, our customers would get a much better result with these tips. Welcome to download.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Hymnorq |
| Part number | DC023 |
| Item Weight | 100 g |
| Product Dimensions | 13 x 1.5 x 7.01 cm; 100 g |
| Item model number | DC023 |
| Style | 13pcs(Plastic Case) |
| Finish | Bronze |
| Material | Cobalt Steel |
| Item Package Quantity | 1 |
| Number Of Pieces | 13 |
| Tool Tip Description | Split Point |
| Measurement System | Metric |
| Included components | 13 pieces of metric cobalt drill bits |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Cobalt Steel
- **Cutting diameter:** 6.5 Millimeters
- **Finish type:** Bronze
- **Shank type:** Round
- **Cutting angle string:** 135 Degrees

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71-BbfYbPlL.jpg)

## Available Options

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

## Questions & Answers

**Q: how long are those?**
A: Thanks for your question. We just measured all the bits. 
Length of Dia. 6.5mm drill bit: 100mm
Length of Dia. 6mm drill bit: 92mm
Length of Dia. 5.5mm drill bit: 93mm
Length of Dia. 5mm drill bit: 86mm
Length of Dia. 4.8mm drill bit: 86mm
Length of Dia. 4.5mm drill bit: 79mm
Length of Dia. 4mm drill bit: 74mm
Length of Dia. 3.5mm drill bit: 69mm
Length of Dia. 3.2mm drill bit: 65mm
Length of Dia. 3mm drill bit: 62mm
Length of Dia. 2.5mm drill bit: 55mm
Length of Dia. 2mm drill bit: 48mm
Length of Dia. 1.5mm drill bit: 39mm

**Q: I need to cut through 3/16" heat treated high carbon steel. Think these can handle it?**
A: Carbide bits are suitable for heat treated high carbon steel and hardened steel.

**Q: Can these drill through cheddar or provolone without breaking?**
A: Keep the speed very low or you risk burning the medium. You can go as low as 1RMM or even less. Or just chuck up a pit and poke at 0RPM. It works surprisingly well! If you wish to minimize the likelihood of burning, use a full-fat cheese for extra lubrication. Avoid drilling Swiss cheese if possible. The Swiss have used a clever proprietary blind hole drilling process during the manufacturing of their cheese and those pre-drilled holes definitely cause the bit to wander off course if the cheese is subsequently drilled outside of the factory setting. I learned that the hard way. Getting back to your original question, if you drill perpendicular to the face and slowly, you should be ok. I haven't tried it any other way tho, to be honest. By the nature of your question, I presume you are in Wisconsin. Go Packers!

**Q: Why do drill bits sometimes break when drilling?**
A: 1. Poor quality of bit. 
2. Too much pressure on the drill and it either heats up and snaps or the point grabs and the bit twists and breaks. 
3. Not going straight through and pushing sidewise on the bit.
If you believe that you operate properly but the the bits break, please contact us for a few replacement. 
You can always buy with confidence from Migiwata.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ph/products/321471947-13-piece-cobalt-drill-bit-set-with-index-case-m35](https://www.desertcart.ph/products/321471947-13-piece-cobalt-drill-bit-set-with-index-case-m35)

---

*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-02-01*