---
product_id: 264990342
title: "Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)"
brand: "irwin"
price: "€ 30.76"
currency: EUR
in_stock: true
reviews_count: 6
category: "Irwin"
url: https://www.desertcart.ie/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6
store_origin: IE
region: Ireland
---

# Fastest Speedbor ever Full screw-point self-feeds 1/4" quick-change shank Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)

**Brand:** irwin
**Price:** € 30.76
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill smarter, faster, cleaner — don’t get left behind!

## Quick Answers

- **What is this?** Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) by irwin
- **How much does it cost?** € 30.76 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6)

## 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

- • **Compact & Versatile:** Shorter length ideal for tight spaces, drilling holes up to 2" deep without compromise.
- • **Blazing Fast Drilling:** Experience the fastest Speedbor ever with tri-flute design for rapid chip ejection and less binding.
- • **Precision-Clean Holes:** Three cutting spurs deliver cleaner holes with minimal breakout—perfect for professional finishes.
- • **Universal Quick-Change:** 1/4" hex shank fits all standard quick-change chucks, including impact drills—no slipping guaranteed.
- • **Effortless Self-Feeding:** Full screw-point tip ensures smooth, self-feeding action, reducing effort and boosting efficiency.

## Overview

The IRWIN Speedbor Max Speed 6-piece wood drill bit set features a full screw-point tip and three cutting spurs for faster, cleaner holes with less breakout. Its tapered tri-flute design ensures rapid chip ejection and reduced binding, while the 1/4" quick-change hex shank fits all standard chucks, including impact drills. Compact and efficient, these bits are perfect for drilling up to 2" deep in tight spaces, making them a must-have for professionals seeking precision and speed.

## Description

The IRWIN SPEEDBOR Max Speed wood drilling bit is the FASTEST SPEEDBOR EVER. The Speed Tip features a full screw-point that allows bit to self-feed, as well as three (3) cutting spurs for faster, cleaner holes, less breakout and extended drilling life. The tapered tri-flute design allows for faster chip ejection and less binding. Its grooved hex shank prevents slipping and fits all standard 1/4" quick-change chucks, including impact drills.

Review: Good - Accurate
Review: La marca lo dice todo, excelente calidad

## Features

- Three cutting spurs for faster, cleaner holes, less breakout and extended drilling life
- Full screw-point tip allows bit to self-feed for ease of drilling
- Shorter overall length for drilling in tight spaces. Ideal for holes up to 2" deep
- 1/4" quick-change shank reduces slipping in standard chucks and is compatible with all 1/4" quick-change chucks, including impact drills

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LLGRQZY |
| ASIN  | B00LLGRQZY |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #122,973 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #557 in Power Drill Bit Sets |
| Color | Multi |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,375) |
| Customer reviews | 4.6 4.6 out of 5 stars (2,375) |
| Date First Available | 20 April 2015 |
| Date First Available  | 20 April 2015 |
| Department  | Unisex-Adult |
| Finish | Black Oxide |
| Included components | (6) Speedbor Max Speed Bits sizes: 1/2" ,5/8", 3/4", 7/8", 1" and 1-1/8" |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 295 g |
| Item model number | 1877239 |
| Item model number  | 1877239 |
| Manufacturer | IRWIN |
| Manufacturer  | IRWIN |
| Material | High Speed Steel (HSS) |
| Measurement System | Inch |
| Number Of Pieces | 6 |
| Part number | 1877239 |
| Pattern | Solid |
| Power source type | Hand_powered |
| Product Dimensions | 3.1 x 15.49 x 23.5 cm; 294.83 g |
| Product Dimensions  | 3.1 x 15.49 x 23.5 cm; 294.83 g |
| Shape | Rectangular |
| Size | One Size |
| Style | Classic |

## Product Details

- **Cutting angle string:** 135 Degrees
- **Cutting diameter:** 4 Inches
- **Finish type:** Black Oxide
- **Material:** High Speed Steel (HSS)
- **Shank type:** Hex

## Images

![Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) - Image 1](https://m.media-amazon.com/images/I/51nTf6eMO0L.jpg)
![Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) - Image 2](https://m.media-amazon.com/images/I/61u+tisTboL.jpg)

## Questions & Answers

**Q: What are the sizes?  Geesh!  We should not need to ask that!**
A: Third picture shows the sizes (diameter of the hole).  What isn't shown is the actual length of the bit from tip to tip

**Q: Are they serious really do we have to ask derrrrrrrrrrr what are the sizes**
A: There isn't a second picture

**Q: The packaging stated that the largest dia bit is 1 1/8"... is it 1 1/8" or 1 1/4" dia for the large one, as stated in the q&a below??**
A: 1 1/8" is what it actually is

**Q: Are these impact rated?**
A: No, these are not impact rated

## Customer Reviews

### ⭐⭐⭐⭐ Good
*by H***Y on 11 October 2022*

Accurate

### ⭐⭐⭐⭐⭐ Review
*by F***O on 27 August 2023*

La marca lo dice todo, excelente calidad

### ⭐⭐⭐⭐⭐ Review
*by A***R on 20 November 2025*

Was using one of these within an hour after receiving.....needed to make 8, 1" inch holes in treated 4 x 4's.....not an issue, worked excellent, a paddle bit would've been destroyed, just let the bit feed itself thru the wood. Good buy for me, thank you

## Frequently Bought Together

- Irwin Tools IRWIN SPEEDBOR Drill Bit Set for Wood, 4-Inch, 6-Piece (1877239)
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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-01-30*