---
product_id: 448555665
title: "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"
brand: "wildbossy"
price: "¥9637"
currency: JPY
in_stock: true
reviews_count: 5
category: "Wild Bossy"
url: https://www.desertcart.jp/products/448555665-m35-5-cobalt-metric-drill-bits-set-1mm-10mm-19pcs
store_origin: JP
region: Japan
---

# 135° Split Point for Precision & Anti-Walking M35 Cobalt Steel Alloy - 67 Rockwell Hardness 10pcs Metric 4.5mm Bits in Durable Case 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

**Brand:** wildbossy
**Price:** ¥9637
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill Like a Pro, Last Like a Legend

## Quick Answers

- **What is this?** 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 by wildbossy
- **How much does it cost?** ¥9637 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/448555665-m35-5-cobalt-metric-drill-bits-set-1mm-10mm-19pcs)

## 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 neatly stored in a rugged case for on-the-go professionals.
- • **Unmatched Durability:** M35 cobalt steel with molybdenum boosts lifespan 17x over standard HSS bits.
- • **Confidence Guaranteed:** Backed by WildBossy’s satisfaction promise — drill with zero compromise.
- • **Precision Engineering:** 135° split point and gold oxide finish ensure clean, accurate drilling every time.
- • **Versatile Metal Mastery:** Effortlessly drills stainless steel, cast iron, aluminum, and more — your all-metal solution.

## Overview

The WildBossy Cobalt Drill Bit Set features 10 precision-engineered 4.5mm M35 cobalt steel bits with a 135° split point and gold oxide finish, delivering exceptional hardness (67 Rockwell) and durability. Designed for professional-grade drilling in hard metals like stainless steel and cast iron, this set combines longevity, precision, and portability in a sturdy case, making it the ultimate choice for millennial managers who demand performance and reliability on every project.

## Description

Buy WildBossy 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 online on desertcart.ae at best prices. ✓ Fast and free shipping ✓ free returns ✓ cash on delivery available on eligible purchase.

Review: Fonctionnent tel que décrit, c'est ce qui me manquait, du métrique, je fais de l'impression 3D et je ne fonctionne pas en mesure impériale
Review: solid drill bits.

## 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 |
| ASIN  | B0D458C5SX |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #61,748 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #45 in Jobber Drill Bits |
| Customer Reviews | 4.5 4.5 out of 5 stars (587) |
| Customer reviews | 4.5 4.5 out of 5 stars (587) |
| Date First Available | 27 June 2024 |
| Date First Available  | 27 June 2024 |
| Finish | Gold |
| Item Weight | 100 g |
| Manufacturer | WildBossy |
| Manufacturer  | WildBossy |
| Manufacturer reference | GZZT-4.5MM |
| Manufacturer reference  | GZZT-4.5MM |
| Material | Stainless Steel |
| Package Dimensions | 10.9 x 10.79 x 2.31 cm; 100 g |
| Package Dimensions  | 10.9 x 10.79 x 2.31 cm; 100 g |
| Part number | GZZT-4.5MM |
| Size | 4.5MM-10PCS |

## Product Details

- **Cutting angle string:** 135 Degrees
- **Cutting diameter:** 4.5 Millimeters
- **Finish type:** Gold
- **Material:** Stainless Steel
- **Shank type:** Straight

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/71hNyYvv2YL.jpg)

## Questions & Answers

**Q: I ordered this set but it came as a much cheaper set in a weak, brittle case. Is this what is being sent now, or was this just a shipping mistake?**
A: Mine came in a clear plastic case with a black plastic divider section.   Not the greatest however I needed the bits to work, not the case.

**Q: I want to drill 8 to 10 holes through large, stainless steel hinges (3mm thick).Could I do the job with these drills?**
A: Probably but you will need the right cutting fluid .
I did not use this bits on SS yet.
Thank you
GOOGLE:
"What can you use to cut stainless steel fluid?
As a manufacturer of metal processing oil, we recommend MORESCO BS-6M soluble cutting fluid, MORESCO BS-9 soluble cutting oil. WILL CM-128 semi-synthetic cutting oil, WILL CH-370 semi-synthetic cutting fluid. These cutting oils are especially good on stainless steel, and provide excellent performances during machining."

**Q: Is this suitable for the soft metal in jewelry?**
A: yes, any metal

**Q: Where are they made?**
A: Unfortunately I could not find a country of manufacture this company.   They are inexpensive bits, and I've had good luck with them.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***N on 9 April 2025*

Fonctionnent tel que décrit, c'est ce qui me manquait, du métrique, je fais de l'impression 3D et je ne fonctionne pas en mesure impériale

### ⭐⭐⭐⭐⭐ Review
*by R***L on 7 December 2025*

solid drill bits.

### ⭐⭐⭐⭐⭐ Review
*by K***R on 13 October 2023*

I made my mounting rack for my solar panels out of used steal pipe, and I had to drill quite a few holes for mounting these panels. The piping was quite hard and I bought five drill bits, so as to make sure I wouldn't run out. To my surprise the drill bits held up really well and I was able to drill all the holes with just one bit. I did pre-drill the holes with a center drill, but that was all I used, and of course some lubricant. I never thought that I could drill these many holes without wearing out the drill bit. Quite amazing.

## Frequently Bought Together

- WildBossy 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
- Tap Magic 30004P ProTap Cutting Fluid, 4 oz. Size
- MACXCOIP Metric Cobalt Drill Bit Set, 25Pcs M35 HSS Jobber Drill Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1mm-13mm

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**Shop now:** [https://www.desertcart.jp/products/448555665-m35-5-cobalt-metric-drill-bits-set-1mm-10mm-19pcs](https://www.desertcart.jp/products/448555665-m35-5-cobalt-metric-drill-bits-set-1mm-10mm-19pcs)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-19*