---
product_id: 633417559
title: "3PCS Premium HSS & M35 Cobalt Spiral Step Drill Bit Sets (1/4\"-7/8\"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects"
brand: "ss shovan"
price: "฿4038"
currency: THB
in_stock: true
reviews_count: 13
category: "Ss Shovan"
url: https://www.desertcart.co.th/products/633417559-3pcs-premium-hss-and-m35-cobalt-spiral-step-drill-bit
store_origin: TH
region: Thailand
---

# 3PCS versatile step sizes 1/4"-7/8" in one set M35 HSS + 5% Cobalt for unmatched durability TiAlN coating for extreme wear resistance 3PCS Premium HSS & M35 Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects

**Brand:** ss shovan
**Price:** ฿4038
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Smarter, Last Longer — The Ultimate Step Bit Set for Pros & DIYers

## Quick Answers

- **What is this?** 3PCS Premium HSS & M35 Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects by ss shovan
- **How much does it cost?** ฿4038 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/633417559-3pcs-premium-hss-and-m35-cobalt-spiral-step-drill-bit)

## Best For

- ss shovan enthusiasts

## Why This Product

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

## Key Features

- • **Slip-Free Hex Shank:** 1/4" hex shank fits all drills securely, eliminating slippage and boosting your workflow efficiency.
- • **Unrivaled Durability:** Premium M35 high-speed steel with cobalt ensures long-lasting sharpness even on stainless steel.
- • **All-in-One Versatility:** Three step drill bits cover a wide size range from 1/4" to 7/8", perfect for metal, wood, plastic & more.
- • **Precision Spiral Design:** 118° X-type openings with spiral flutes deliver smooth drilling and efficient chip removal every time.
- • **Next-Level Wear Resistance:** Advanced Titanium Aluminium Nitride (TiAlN) coating extends bit life and maintains cutting precision.

## Overview

This 3-piece premium step drill bit set features M35 high-speed steel with 5% cobalt and a TiAlN coating for superior durability and wear resistance. Designed with a 118° spiral flute and hex shank, it offers smooth, precise drilling across metals, wood, and plastics, covering hole sizes from 1/4" to 7/8". Ideal for professionals and DIY enthusiasts seeking a versatile, long-lasting drilling solution.

## Description

Durable TiAlN-coated step drill bits made from premium HSS with 5% cobalt for superior performance on tough materials. Versatile 3-piece set with 1/4"-7/8" size range.

Review: Quality, good performance step drills - Been using these for a few months now.. still sharp after drilling everything from aluminium to stainless steel. Quality is good.
Review: Well presented, inaprotective fitted case. - Well presented, protective fitted case.Seemto be reasonable quality. I haven't used them on more than thin plate at the moment. But the do seem to hold up well to general diy use.

## Features

- ✅ VERSATILE 3PCS SET - Includes three step drill bits with varying sizes: #1 (1/4" - 5/16" - 3/8" - 7/16" - 1/2"), #2 (1/4" - 9/32" - 5/16" - 11/32" - 3/8" - 13/32" - 7/16" - 15/32" - 1/2"), and #3 (5/16" - 3/8" - 7/16" - 1/2" - 9/16" - 5/8" - 11/16" - 3/4" - 13/16"- 7/8"). These metal drill bits come in a box so they can be storage well.
- ✅ PREMIUM M35 HSS - Constructed from M35 high speed steel with 5% cobalt content, these step drill bits offer exceptional durability and superior cutting performance, even on tough materials like stainless steel (＜1mm).
- ✅ ADVANCED TIALN COATING - The Titanium Aluminium Nitride (TiAlN) coating ensures high hardness and excellent wear resistance, extending the lifespan of the drill bits and maintaining sharpness for longer periods.
- ✅ 118°X TYPE OPENINGS DESIGN - Designed with a spiral flute for smooth, clean drilling and enhanced chip removal. Achieve precise holes effortlessly, reducing the need for multiple drill bits.
- ✅ IDEAL FOR DIY & PROFESSIONAL USE - Whether you’re a DIY enthusiast or a professional, this step drill bit set is perfect for various applications, including drilling in sheet metal, aluminium, copper, wood, plastic, and more. Not only can it enlarge holes, but it also deburrs, chamfers, and cutting.
- ✅ COMPATIBLE WITH VARIOUS DRILLS - 1/4"(6.35mm) Hex shank design eliminate slipping in drill chuck, these step drill bits are compatible with a range of drilling tools including bench drills press, impact drills, and hand drills, making them a versatile addition to your toolkit.
- ❗ KIND TIPS - To prevent overheating and potential damage to the drill bits, always use cutting oil or spraying water during operation. Proper cooling extends the life and efficiency of the bits.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CP96FNTT |
| Best Sellers Rank | 2,299 in DIY & Tools ( See Top 100 in DIY & Tools ) 15 in Drill Bit Sets |
| Brand | ss shovan |
| Country Of Origin | China |
| Customer Reviews | 4.5 4.5 out of 5 stars (443) |
| Cutting Angle String | 118 Degrees |
| Cutting Diameter | 0.25 Inches |
| Finish Types | Titanium Aluminium Nitride |
| Included Components | 3PCS Step Drill Bits, Box |
| Manufacturer | SS SHOVAN |
| Material | High Speed Steel Coblat M35, TiAlN Coating |
| Minimum Bore Diameter | 0.25 Inches |
| Model Number | step-M35 |
| Number of Flutes | 2 |
| Point Style | X Point |
| Shank Type | Hexagon |
| Surface Recommendation | Metal |
| Tool Flute Type | Spiral |
| Unit Count | 3.0 count |

## Product Details

- **Cutting angle string:** 118 Degrees
- **Cutting diameter:** 0.25 Inches
- **Finish type:** Titanium Aluminium Nitride
- **Material:** High Speed Steel Coblat M35, TiAlN Coating
- **Shank type:** Hexagon

## Images

![3PCS Premium HSS & M35 Cobalt Spiral Step Drill Bit Sets (1/4"-7/8"), TiAlN Coated for Superior Durability, Cone Drill Bit for Sheet Metal, Stainless Steel, Aluminum, Wood, Plastic and DIY Projects - Image 1](https://m.media-amazon.com/images/I/71G7vF9MmUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality, good performance step drills
*by S***. on 21 February 2026*

Been using these for a few months now.. still sharp after drilling everything from aluminium to stainless steel. Quality is good.

### ⭐⭐⭐⭐⭐ Well presented, inaprotective fitted case.
*by K***R on 31 January 2026*

Well presented, protective fitted case.Seemto be reasonable quality. I haven't used them on more than thin plate at the moment. But the do seem to hold up well to general diy use.

### ⭐⭐⭐⭐ Good value
*by A***N on 11 January 2026*

Not the best but ok for hard surfaces to drill 👍👍👍

## Frequently Bought Together

- 3PCS Unibit Step Drill Bit Set (1/4"-7/8"), M35 Cobalt, TiAlN Coated for Superior Durability, Spiral Cone Drill for Stainless Steel, Sheet Metal, Aluminum & Plastic
- Jerax tools 1/4 to 3/4 Inch Step Drill Bit, M2 High Speed Steel Drill bits for Hole Drilling in Extra Thick Material/Panel/Plate, Stainless Steel, Copper, Aluminum, Wood, Plastic

---

## 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.co.th/products/633417559-3pcs-premium-hss-and-m35-cobalt-spiral-step-drill-bit](https://www.desertcart.co.th/products/633417559-3pcs-premium-hss-and-m35-cobalt-spiral-step-drill-bit)

---

*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-04-29*