---
product_id: 386584137
title: "STROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps)"
brand: "stroton"
price: "E£ 4759"
currency: EGP
in_stock: true
url: https://www.desertcart.com.eg/products/386584137-stroton-4-32mm-metric-5-cobalt-step-drill-bit-stainless
store_origin: EG
region: Egypt
---

# 15-step sizes from 4-32mm - versatile precision 66-69 HRC Rockwell Hardness - extreme heat & wear resistance M35 5% Cobalt Steel - premium durability STROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps)

**Brand:** stroton
**Price:** E£ 4759
**Availability:** ✅ In Stock

## Summary

> 🔧 Step up your drilling game with STROTON’s cobalt power!

## Quick Answers

- **What is this?** STROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps) by stroton
- **How much does it cost?** E£ 4759 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/386584137-stroton-4-32mm-metric-5-cobalt-step-drill-bit-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

- • **Unmatched Durability:** Crafted from premium M35 5% cobalt steel for superior heat, wear, and chip resistance—engineered to outlast ordinary bits.
- • **Efficiency Meets Speed:** Runs 2-3x faster than standard bits, reducing project time while maintaining flawless results—because your time is money.
- • **Precision in Every Step:** 15 distinct drill sizes (4-32mm) seamlessly integrated into one tool, eliminating the need for multiple bits and speeding up your workflow.
- • **Cost-Effective Performance:** Though premium priced, the lowest cost per hole thanks to extended tool life and fewer replacements—invest smart, drill smarter.
- • **Cut Through Tough Materials:** Designed to effortlessly drill stainless steel, iron, aluminum, PVC, and more—perfect for professional-grade projects.

## Overview

The STROTON 4-32mm Metric 5% Cobalt Step Drill Bit is a high-performance, 15-step drill bit made from premium M35 cobalt steel with a Rockwell hardness of 66-69 HRC. Engineered for superior heat and wear resistance, it efficiently drills through stainless steel, hard metals, plastics, and more. Its versatile 15-step design covers a wide range of sizes, enabling faster, precise drilling with extended tool life, making it the go-to choice for professionals demanding durability and speed.

## Description

4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps)

## Features

- Premium M35 5% Cobalt Steel ,66-69 HRC (Rockwell Hardness Scale) ,Usually Give the Best Heat,Wear and Chip Resistance and Long Tool Life.
- Grinding the Cutting Edge Three Times,with the High HRC and Heat Resistance of the Material,Desigh for Cutting through Stainless steel , Iron plate, Aluminum,Ducts,Wood,PVC and Plastic.
- This Cobalt Step Drill Bit is Typically Capable of Running Two to Three 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.
- [4-32mm] 15 Steps (4mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm,22mm,24mm,26mm,28mm,30mm,32mm)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | STROTON |
| Part number | Cobalt-15s-(4-32mm) |
| Item Weight | 210 g |
| Product Dimensions | 14.8 x 7.21 x 4.1 cm; 210 g |
| Item model number | Cobalt-15s-(4-32mm) |
| Finish | Brass |
| Material | Cobalt |
| Pattern | 4-32mm(15 steps) |
| Item Package Quantity | 1 |
| Number Of Pieces | 15 |
| Measurement System | Metric |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Cobalt
- **Cutting diameter:** 32 Millimeters
- **Finish type:** Brass
- **Shank type:** Straight
- **Cutting angle string:** 135 Degrees

## Images

![STROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps) - Image 1](https://m.media-amazon.com/images/I/51tNeQl23gL.jpg)

## Available Options

This product comes in different **Pattern Name** options.

## Questions & Answers

**Q: what is the recommended speed for this bit for stainless steel?**
A: I use an ancient Craftsman 1/2 horse with one speed (400RPM) and can get through anything.

**Q: Will this bit drill cast iron pipe?**
A: I have used the bit on stainless, carbon, galvanized, and aluminum. One recurring issue is as each step breaks through, it catches and hard stops the bit. That action might cause cast to crack, especially on the larger diameter holes.

**Q: Is this left-handed threaded?**
A: This is a step drill. It has no threads

## Frequently Bought Together

- STROTON 4-32mm Metric 5% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (15 Steps)
- Metric M42 8% Cobalt Twist Drill Bits Set for Stainless Steel and Hard Metal (1mm-10mm/19pcs)
- Forney 20857 Tap Magic Industrial Pro Cutting Fluid, 4 oz

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**Shop now:** [https://www.desertcart.com.eg/products/386584137-stroton-4-32mm-metric-5-cobalt-step-drill-bit-stainless](https://www.desertcart.com.eg/products/386584137-stroton-4-32mm-metric-5-cobalt-step-drill-bit-stainless)

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*Product available on Desertcart Egypt*
*Store origin: EG*
*Last updated: 2026-01-25*