---
product_id: 16258365
title: "Irwin Tools IRWIN SPEEDBOR Drill Bit Set for Wood, 4-Inch, 6-Piece (1877239)"
brand: "irwin"
price: "$U2280"
currency: UYU
in_stock: true
reviews_count: 13
category: "Irwin"
url: https://www.desertcart.uy/products/16258365-irwin-tools-irwin-speedbor-drill-bit-set-for-wood-4
store_origin: UY
region: Uruguay
---

# Fastest Speedbor ever 1/4" quick-change hex shank Clean, breakout-free wood holes Irwin Tools IRWIN SPEEDBOR Drill Bit Set for Wood, 4-Inch, 6-Piece (1877239)

**Brand:** irwin
**Price:** $U2280
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill smarter, not harder — the Speedbor Max is your woodwork game-changer!

## Quick Answers

- **What is this?** Irwin Tools IRWIN SPEEDBOR Drill Bit Set for Wood, 4-Inch, 6-Piece (1877239) by irwin
- **How much does it cost?** $U2280 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/16258365-irwin-tools-irwin-speedbor-drill-bit-set-for-wood-4)

## 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

- • **Built to Last:** Tapered tri-flute design ejects chips fast, reducing binding and extending bit life
- • **Slip-Free Grip:** Grooved hex shank locks into all 1/4" quick-change chucks, including impact drills 🔄
- • **Compact & Versatile:** Short 4-inch length fits tight spaces and studs effortlessly
- • **Precision Clean Cuts:** Triple cutting spurs deliver smooth, breakout-free holes every time 🪵
- • **Blazing Fast Drilling:** Self-feeding screw-point tip powers through wood with zero push effort ⚡

## Overview

The IRWIN SPEEDBOR Max Speedbor Drill Bit Set features a self-feeding screw-point tip and three cutting spurs for ultra-fast, clean holes with minimal breakout. Its 4-inch length and grooved hex shank ensure compatibility with all 1/4" quick-change chucks, including impact drills, making it perfect for tight spaces and professional-grade wood drilling. Designed for durability and efficiency, this 6-piece set is a must-have for any serious DIYer or pro.

## Description

Product 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. From the Manufacturer 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: Worked Perfect, much better than a Paddle Bit! - 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
Review: The only? sensible way to run cable through 2x4 studs - You could use a spade bit I suppose: push, struggle and take a break after the second one. With these bits you pretty much touch the tip to the wood, trigger the drill and sit back and watch. No push required. The threads on the tip suck the bit through the wood. You'll have time and energy to spare, to wipe off the shavings at the far end. The short bit length, ideally in combination with a right-angle drill or adapter, gets you in even when studs are narrowly spaced. If you're a first-time DIYer I strongly suggest you read up on the electrical code on drilling through studs. Do it wrong and you could cause a fire and/or weaken the stud.

## 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 |
| Best Sellers Rank | #8,974 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #9 in Wood Drill Bit Sets |
| Brand | IRWIN |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 101.6 Millimeters |
| Date First Available | July 7, 2014 |
| Department | Unisex-Adult |
| Finish Type | Brushed |
| Global Trade Identification Number | 00042526916762 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 10.4 ounces |
| Item dimensions L x W x H | 1.22 x 6.1 x 9.25 inches |
| Item model number | 1877239 |
| Manufacturer | IRWIN |
| Material | Blend |
| Number of Flutes | 3 |
| Number of Pieces | 6 |
| Point Style | Screw Point |
| Product Dimensions | 1.22 x 6.1 x 9.25 inches |
| Set Name | SPEEDBOR MAX 4IN OAL 6PC CLAM SET |
| Shank Type | Hex |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| UPC | 042526916762 |
| Unit Count | 1.0 Count |

## Product Details

- **Cutting Angle String:** 135 Degrees
- **Cutting Diameter:** 101.6 Millimeters
- **Finish Type:** Brushed
- **Material:** Blend
- **Shank Type:** Hex

## Images

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

## Available Options

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

## 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

### ⭐⭐⭐⭐⭐ Worked Perfect, much better than a Paddle Bit!
*by A***R on November 20, 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

### ⭐⭐⭐⭐⭐ The only? sensible way to run cable through 2x4 studs
*by E***E on November 30, 2025*

You could use a spade bit I suppose: push, struggle and take a break after the second one. With these bits you pretty much touch the tip to the wood, trigger the drill and sit back and watch. No push required. The threads on the tip suck the bit through the wood. You'll have time and energy to spare, to wipe off the shavings at the far end. The short bit length, ideally in combination with a right-angle drill or adapter, gets you in even when studs are narrowly spaced. If you're a first-time DIYer I strongly suggest you read up on the electrical code on drilling through studs. Do it wrong and you could cause a fire and/or weaken the stud.

### ⭐⭐⭐⭐⭐ Sturdy bits. I used them a lot around the cabin,!
*by S***Y on February 10, 2026*

Good bits!

## Frequently Bought Together

- Irwin Tools IRWIN SPEEDBOR Drill Bit Set for Wood, 4-Inch, 6-Piece (1877239)
- Diablo Universal Extension for Drills - For Cordless and Corded Impact and Drill Drivers - 1/4" Hex Shank, 12" Length - DXT1020
- EZ Electrical System Solutions, LLC EZ Guard Single Stud Electrical Wire Protector 25 PK green, silver

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-21*