---
product_id: 264990342
title: "Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)"
brand: "irwin"
price: "$1545"
currency: MXN
in_stock: true
reviews_count: 1
category: "Irwin"
url: https://www.desertcart.mx/products/264990342-irwin-speedbor-drill-bit-set-for-wood-4-inch-6
store_origin: MX
region: Mexico
---

# Fastest Speedbor ever Shorter length for tight spaces Full screw-point self-feed tip Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)

**Brand:** irwin
**Price:** $1545
**Availability:** ✅ In Stock

## Summary

> ⚡ Drill smarter, not harder — the Speedbor that keeps you ahead of the pack!

## Quick Answers

- **What is this?** Irwin Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) by irwin
- **How much does it cost?** $1545 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.mx](https://www.desertcart.mx/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

- • **Built to Last:** High-speed steel construction with tapered tri-flute design ensures faster chip ejection and extended bit life.
- • **Compact & Versatile:** Shorter 4-inch length perfect for tight spots and holes up to 2 inches deep—no workspace too small.
- • **Blazing Fast Precision:** Three cutting spurs deliver cleaner, faster holes with less breakout—get the job done in record time.
- • **Slip-Free Quick Change:** 1/4" hex shank fits all quick-change chucks, including impact drills, for seamless bit swaps without slipping.
- • **Effortless Self-Feeding:** Full screw-point tip powers through wood, reducing effort and boosting drilling speed.

## Overview

The IRWIN Speedbor Max Speed 6-piece drill bit set features a revolutionary full screw-point tip and triple cutting spurs for ultra-fast, clean wood drilling. Its compact 4-inch length and 1/4" quick-change hex shank make it ideal for tight spaces and compatible with all standard quick-change chucks, including impact drills. Crafted from high-speed steel with a tapered tri-flute design, these bits deliver superior chip ejection, reduced breakout, and extended durability—perfect for professionals who demand speed and precision.

## 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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*Product available on Desertcart Mexico*
*Store origin: MX*
*Last updated: 2026-01-23*