---
product_id: 407355175
title: "Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Cobalt Free Black 3pcs)"
brand: "nityunn"
price: "€ 41.08"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/407355175-spiral-grooved-step-drill-bit-m35-high-speed-steel-4
store_origin: SK
region: Slovakia
---

# 29 Size Options Titanium Nitride Coating High-Speed Steel Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Cobalt Free Black 3pcs)

**Brand:** nityunn
**Price:** € 41.08
**Availability:** ✅ In Stock

## Summary

> 🔧 Drill Your Way to Perfection!

## Quick Answers

- **What is this?** Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Cobalt Free Black 3pcs) by nityunn
- **How much does it cost?** € 41.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/407355175-spiral-grooved-step-drill-bit-m35-high-speed-steel-4)

## Best For

- nityunn enthusiasts

## Why This Product

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

## Key Features

- • **User-Friendly:** Triangular round shank for easy power tool compatibility.
- • **Durable Design:** Heat-treated HSS ensures longevity and reliability.
- • **Smooth Operation:** Spiral flutes for faster, smoother cutting.
- • **Versatile Sizing:** 29 sizes to tackle any project with ease.
- • **Precision Engineering:** Experience flawless drilling with our titanium-coated step bits.

## Overview

The Spiral Step Drill Bit set includes three high-speed steel bits with titanium nitride coating, designed for durability and efficiency. With 29 size options, these bits are perfect for various materials, ensuring smooth and precise drilling. Ideal for professionals and DIY enthusiasts alike, this set is a must-have for any toolkit.

## Description

Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Cobalt Free Black 3pcs)

## Features

- HSS and titanium coated. These step drill bits are made of heat-treated high-speed steel (HSS) with titanium nitride coating. Titanium coated to reduce friction and effectively extend service life. This step drill also has good corrosion and rust resistance.
- Spiral flutes triangle round shaft design spiral groove: Allows for faster, more stable and smoother cutting. It can automatically chamfer the hole to clean the drill. Triangular round shaft: Can be easily inserted into power driver, drill and press drill.
- 29 sizes 3 step drill bits in standard size have the following 29 sizes: 15 steps: 4 32 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, 30 mm, 32 mm); 9 steps: 4 20 mm (4 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 16 mm, 18 mm, 20 mm); 5 steps: 4 12mm (4mm, 6mm, 8mm, 10mm, 12mm) A variety of drill sizes is perfect for your needs and saves you time.
- Usage;Used with pistol drill or bench drill, water it to cool while working to prolong its life, the proper drilling speed is 250-400 rpm.Suitable for these work-pieces that hardness is lower than 25 degree and the thickness is beyond 4mm, such as PVC board, wood, iron sheet, etc. Not suitable for drilling and cutting hard metals such as stainless steel.
- Customer satisfaction is our great motivation, we will do our best service, if you have any questions about this step drill, please feel to contact us.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Unila |
| Part number | 1 |
| Item Weight | 260 g |
| Package Dimensions | 10.7 x 9.6 x 3.2 cm; 260 g |
| Manufacturer reference | 1 |
| Finish | Titanium Nitride, Titanium |
| Material | High Speed Steel |
| Batteries included? | No |
| Batteries Required? | No |

## Images

![Spiral Grooved Step Drill Bit, M35 High-Speed Steel 4-20mm 4-32mm Cobalt-containing Spiral Pagoda Drill, Drill and Enlarge Hole for Wood Metal Stainless Steel (Cobalt Free Black 3pcs) - Image 1](https://m.media-amazon.com/images/I/61K4v4OxqcL.jpg)

---

## 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.sk/products/407355175-spiral-grooved-step-drill-bit-m35-high-speed-steel-4](https://www.desertcart.sk/products/407355175-spiral-grooved-step-drill-bit-m35-high-speed-steel-4)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-26*