---
product_id: 60045255
title: "Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic"
brand: "irwin"
price: "€ 77.79"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/60045255-step-drill-bit-1-8-inch-to-1-2-inch
store_origin: SK
region: Slovakia
---

# 3-flatted hex shank for slip-free grip Faster penetration with SpeedPoint tip 13-step precision sizing Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic

**Brand:** irwin
**Price:** € 77.79
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill Smarter, Not Harder — The Only Bit You’ll Ever Need!

## Quick Answers

- **What is this?** Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic by irwin
- **How much does it cost?** € 77.79 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/60045255-step-drill-bit-1-8-inch-to-1-2-inch)

## Best For

- irwin enthusiasts

## Why This Product

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

## Key Features

- • **SpeedPoint Tip:** Penetrate materials faster and prevent walking for flawless starts every time.
- • **One Bit, 13 Sizes:** Seamlessly drill from 1/8" to 1/2" without swapping bits—efficiency redefined.
- • **Hex Shank Stability:** 3-flatted design ensures zero slipping in your drill chuck for uninterrupted workflow.
- • **Single-Flute Cutting Edge:** Experience superior control and perfectly round holes on every step.
- • **Versatile Material Compatibility:** Ideal for stainless steel, copper, brass, aluminum, plastic, and laminates.

## Overview

The IRWIN 10231 Step Drill Bit features a patented single-flute cutting edge and a SpeedPoint tip for faster, more precise drilling across 13 incremental sizes from 1/8" to 1/2". Its 3-flatted hex shank guarantees a secure grip, making it perfect for professionals tackling thin materials like stainless steel, aluminum, and plastics. Designed to save time and enhance control, this high-speed steel bit is a must-have for any modern toolkit.

## Description

Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic

## Features

- STEP DRILL #1 1/8-1/2" 13 SZ
- brand: Irwin Tools
- manufacturer: IRWIN

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | IRWIN |
| Part number | 10231 |
| Item Weight | 40.8 g |
| Item model number | 10231 |
| Size | 1/2 inches |
| Colour | Silver|silver Metallic |
| Finish | Black Oxide |
| Material | High Speed Steel (HSS) |
| Pattern | Solid |
| Shape | Shape |
| Item thickness | 3 Inches |
| Power source type | Hand_powered |
| Item Package Quantity | 1 |
| Number of Pieces | 1 |
| Cutting Diameter | 3 Inches |
| Tool tip description | 118 Degree |
| Measurement System | Inch |
| Included components | STEP DRILL #1 1/8-1/2" 13 SZ |
| Batteries included? | No |
| Batteries Required? | No |
| Item diameter | 3 Inches |

## Product Details

- **Material:** High Speed Steel (HSS)
- **Cutting diameter:** 3.18 Millimetres
- **Finish type:** Black Oxide
- **Shank type:** Round
- **Cutting angle string:** 118 Degrees

## Images

![Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic - Image 1](https://m.media-amazon.com/images/I/41QjrXK+ciL.jpg)
![Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic - Image 2](https://m.media-amazon.com/images/I/41QjrXK+ciL.jpg)
![Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic - Image 3](https://m.media-amazon.com/images/I/41QjrXK+ciL.jpg)

## Available Options

This product comes in different **Material Type** options.

## Frequently Bought Together

- Irwin Tools IRWIN Step Drill Bit, 1/8-Inch to 1/2-Inch Step, 1/4-Inch Shank (10231) Silver|Silver metallic
- Irwin Tools IRWIN Step Drill Bit, 3/16-Inch to 7/8-Inch, 3/8-Inch Shank (10234)
- Jerax tools 1/4 to 1-3/8 Inch Step Drill Bit Straight Grooved Double Fluted, M2 High Speed Steel Drill bits for Hole Drilling in Stainless Steel, Copper, Aluminum, Wood, Plastic

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**Shop now:** [https://www.desertcart.sk/products/60045255-step-drill-bit-1-8-inch-to-1-2-inch](https://www.desertcart.sk/products/60045255-step-drill-bit-1-8-inch-to-1-2-inch)

---

*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-20*