---
product_id: 264990342
title: "Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)"
brand: "irwin"
price: "R$463"
currency: BRL
in_stock: true
reviews_count: 1
category: "Irwin"
url: https://www.desertcart.com.br/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6
store_origin: BR
region: Brazil
---

# Fastest Speedbor Ever 1/4" quick-change hex shank Cleaner holes with 3 cutting spurs Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)

**Brand:** irwin
**Price:** R$463
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill smarter, not harder — own the fastest, cleanest cuts in the game!

## Quick Answers

- **What is this?** Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) by irwin
- **How much does it cost?** R$463 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/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 Power:** Shorter 4-inch length perfect for tight, hard-to-reach spots
- • **Precision Clean Cuts:** Triple cutting spurs minimize breakout for flawless woodwork
- • **Blazing Fast Drilling:** Full screw-point tip self-feeds for rapid progress without effort
- • **Universal Compatibility:** Hex shank fits all 1/4" quick-change and impact drill chucks
- • **Durable High-Speed Steel:** Black oxide finish extends bit life and resists wear

## Overview

The IRWIN Speedbor Max Speed 4-inch 6-piece drill bit set is engineered for professional-grade wood drilling with a self-feeding screw-point tip and triple cutting spurs for faster, cleaner holes. Its compact design excels in tight spaces, while the 1/4" hex shank ensures slip-free, universal compatibility with quick-change and impact drills. Crafted from durable high-speed steel with a black oxide finish, this set delivers extended life and precision performance for serious woodworkers.

## 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

## 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 | #121,561 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #548 in Power Drill Bit Sets |
| Brand | IRWIN |
| Brand Name | IRWIN |
| Customer Reviews | 4.6 out of 5 stars 2,367 Reviews |
| Cutting Angle String | 135 Degrees |
| Cutting Diameter | 4 Inches |
| Cutting angle string | 135 Degrees |
| Cutting diameter | 4 Inches |
| Finish Types | Black Oxide |
| Finish type | Black Oxide |
| Global Trade Identification Number | 00042526916762 |
| Included Components | (6) Speedbor Max Speed Bits sizes: 1/2" ,5/8", 3/4", 7/8", 1" and 1-1/8" |
| Item Dimensions | 31 x 155 x 235 millimeters |
| Item Type Name | SPEEDBOR MAX 4IN OAL 6PC CLAM SET |
| Item Weight | 0.29 Kilograms |
| Item height | 9.25 inches |
| Manufacturer | IRWIN |
| Material | High Speed Steel (HSS) |
| Material Type | High Speed Steel (HSS) |
| Minimum Bore Diameter | 4 Inches |
| Model | 1877239 |
| Number of Flutes | 3 |
| Point Style | Screw Point |
| Shank Type | Hex |
| Shank type | Hex |
| Surface Recommendation | Wood |
| Tool Flute Type | Spiral |
| UPC | 042526916762 |
| Unit Count | 1 Count |

## 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

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**Shop now:** [https://www.desertcart.com.br/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6](https://www.desertcart.com.br/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-24*