---
product_id: 290737262
title: "flintronic 3Pcs Spiral Grooved Step Drill Bit Set with 1 Automatic Center Punch, 4mm to 12/20/32 mm (5/32\" to 5/4\") HSS Titanium Coated, Hex Shank Metric Cut Tool for Wood, Stainless Steel,Metal Sheet"
brand: "flintronic"
price: "$45.46"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/290737262-flintronic-3pcs-spiral-grooved-step-drill-bit-set-with-1
store_origin: US
region: United States of America
---

# Titanium-coated HSS for durability 3 precision step sizes (4-12/20/32mm) Hex shank for slip-free power tool fit flintronic 3Pcs Spiral Grooved Step Drill Bit Set with 1 Automatic Center Punch, 4mm to 12/20/32 mm (5/32" to 5/4") HSS Titanium Coated, Hex Shank Metric Cut Tool for Wood, Stainless Steel,Metal Sheet

**Brand:** flintronic
**Price:** $45.46
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drill like a pro, finish like a boss.

## Quick Answers

- **What is this?** flintronic 3Pcs Spiral Grooved Step Drill Bit Set with 1 Automatic Center Punch, 4mm to 12/20/32 mm (5/32" to 5/4") HSS Titanium Coated, Hex Shank Metric Cut Tool for Wood, Stainless Steel,Metal Sheet by flintronic
- **How much does it cost?** $45.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/290737262-flintronic-3pcs-spiral-grooved-step-drill-bit-set-with-1)

## Best For

- flintronic enthusiasts

## Why This Product

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

## Key Features

- • **Titanium Toughness:** HSS steel with titanium coating slices through metal, wood, and plastic effortlessly.
- • **Secure Hex Shank Grip:** Fits snugly in any 1/4" chuck, eliminating slip and boosting precision.
- • **Turbocharged Spiral Groove:** Two-flute spiral design ensures faster, smoother, and cleaner cuts every time.
- • **Versatile 3-Step Drill Set:** Cover all your hole sizes from 4mm to 32mm with one sleek kit.
- • **Bonus Automatic Center Punch:** Pinpoint accuracy starts every hole perfectly—no guesswork, no mess.

## Overview

The flintronic 3Pcs Spiral Grooved Step Drill Bit Set features three versatile step drill sizes (4-12mm, 4-20mm, 4-32mm) crafted from high-speed steel with a titanium coating for enhanced durability and cutting efficiency. Its two-flute spiral groove design delivers faster, smoother drilling with automatic chamfering for clean holes. The 1/4" hex shank ensures a secure, slip-free fit in most power drills, while the included automatic center punch guarantees precise hole placement. Ideal for professionals and DIYers working with wood, metal sheets, plastics, and more.

## Description

flintronic 3Pcs Spiral Grooved Step Drill Bit Set with 1 Automatic Center Punch, 4mm to 12/20/32 mm (5/32" to 5/4") HSS Titanium Coated, Hex Shank Metric Cut Tool for Wood, Stainless Steel,Metal Sheet

## Features

- 📦【Package List】 1 × (4-12 mm), 1 × (4-20 mm), 1 × (4-32 mm) step drill, 1 automatic center punch. The step drills have three sizes to meet your different needs. And the package contained a nylon bag.
- 📣【Two-Flute Spiral Groove Design】Faster, more stable and smoother cutting. It can automatically chamfer the hole to clean the drill bit.
- 🔧【Hex Shank】1/4"(6.35mm) hex shank work with most drill or drills with 1/4" chuck , fits into power tools chuck securely and eliminates slip.
- 🔧【HSS & Titanium Coated】Made of super strong HSS steel and coated with Titanium, Titanium coating ensures easy cutting steel, Aluminum sheet, Brass, Copper, plastic, wood etc.
- ✔【Application】Suitable for sheet metal, sink, car repair, etc. Widely used to cut holes in a variety of material like plate, aluminum, insulation board, PVC board, the thickness of wood within 5mm.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | flintronic®-uk |
| Part Number | F4EU-2896682 |
| Package Dimensions | 14.4 x 10.2 x 4.2 cm; 453.59 g |
| Manufacturer reference | F4EU-2896682 |
| Size | 4-12 mm/4-20 mm/4-32 mm(Spiralnut) |
| Colour | #2 Golden Spiral Groove 4 in 1 |
| Style | Gold |
| Finish | Titanium |
| Material | High Speed Steel (HSS) |
| Item Package Quantity | 1 |
| Number of Pieces | 4 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 454 g |

## Product Details

- **Material:** High Speed Steel (HSS)
- **Cutting diameter:** 4 millimeters Millimetres
- **Finish type:** Titanium
- **Shank type:** SDS-Plus
- **Cutting angle string:** 118 Degrees

## Images

![flintronic 3Pcs Spiral Grooved Step Drill Bit Set with 1 Automatic Center Punch, 4mm to 12/20/32 mm (5/32" to 5/4") HSS Titanium Coated, Hex Shank Metric Cut Tool for Wood, Stainless Steel,Metal Sheet - Image 1](https://m.media-amazon.com/images/I/7171jI5UIwL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What does the 40 mean in the description. I foolishly thought that the drill went up to 40mm.**
A: I looked at the description and I am guessing that there might be a decimal point missing and add should read 4.0 - 32/20/12 as all three step drills have minimum bores of 4mm? .. just a guess.

**Q: Will these bits go through 6mm iron?**
A: Very much doubt they would be of any use for 6mm hard metal. I am only using them for wood.

**Q: Will these bits go through 6mm iron?**
A: I have only used it to go through steel, but I have used hss drill bits to go through cast iron pipes

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-16*