--- product_id: 264990342 title: "Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239)" brand: "irwin" price: "151.21 DT" currency: TND in_stock: true reviews_count: 6 category: "Irwin" url: https://www.desertcart.tn/products/264990342-speedbor-drill-bit-set-for-wood-4-inch-6-piece store_origin: TN region: Tunisia --- # Fastest Speedbor ever 1/4" quick-change hex shank Clean, breakout-free wood holes Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) **Brand:** irwin **Price:** 151.21 DT **Availability:** ✅ In Stock ## Summary > ⚡ Drill faster, cleaner, smarter — don’t get left behind! ## Quick Answers - **What is this?** Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) by irwin - **How much does it cost?** 151.21 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/264990342-speedbor-drill-bit-set-for-wood-4-inch-6-piece) ## 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 - • **Slip-Free Grip:** Hex shank design ensures zero slipping in all 1/4" quick-change chucks, including impact drills. - • **Compact & Versatile:** Shorter 4-inch length perfect for tight spaces and holes up to 2" deep. - • **Complete Size Range:** Six-piece set covers 1/2" to 1-1/8" diameters for every woodworking project. - • **Precision Clean Cuts:** Triple cutting spurs deliver smoother holes with minimal breakout. - • **Blazing Fast Drilling:** Full screw-point tip self-feeds for rapid, effortless penetration. ## Overview The IRWIN Speedbor Max Speed 6-piece drill bit set features a revolutionary full screw-point tip and triple cutting spurs for the fastest, cleanest wood drilling experience. Its compact 4-inch length and hex shank design ensure compatibility with all 1/4" quick-change chucks, including impact drills, making it the ultimate choice for professionals demanding precision and speed in tight spaces. ## 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: Great set. Good price and quality. ## 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 | | Best Sellers Rank | #133,728 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #585 in Power Drill Bit Sets | | Brand Name | IRWIN | | Country Of Origin | China | | Country of origin | China | | Customer Reviews | 4.6 4.6 out of 5 stars (2,408) | | Customer reviews | 4.6 4.6 out of 5 stars (2,408) | | Cutting Angle String | 135 Degrees | | Cutting Diameter | 4 Inches | | Date First Available | 20 April 2015 | | Department | Unisex-Adult | | Finish Types | 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" | | Is Discontinued By Manufacturer | No | | Item Dimensions | 31 x 155 x 235 millimeters | | Item Type Name | SPEEDBOR MAX 4IN OAL 6PC CLAM SET | | Item Weight | 0.1 Pounds | | Item model number | 1877239 | | Manufacturer | IRWIN | | Manufacturer | IRWIN | | Material Type | Blend | | Minimum Bore Diameter | 4 Inches | | Model | 1877239 | | Number of Flutes | 3 | | Number of Pieces | 6 | | Part Number | 1877239 | | Point Style | Screw Point | | Product Dimensions | 3.1 x 15.49 x 23.5 cm; 45.36 g | | Set Name | SPEEDBOR MAX 4IN OAL 6PC CLAM SET | | 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:** Blend - **Shank type:** Hex ## Images ![Speedbor Drill Bit Set For Wood, 4-Inch, 6-Piece (1877239) - Image 1](https://m.media-amazon.com/images/I/51nTf6eMO0L.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 ### ⭐⭐⭐⭐ Good *by H***Y on 11 October 2022* Accurate ### ⭐⭐⭐⭐⭐ Review *by L***M on 9 May 2026* Great set. Good price and quality. ### ⭐⭐⭐⭐⭐ Review *by F***O on 27 August 2023* La marca lo dice todo, excelente calidad ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/264990342-speedbor-drill-bit-set-for-wood-4-inch-6-piece](https://www.desertcart.tn/products/264990342-speedbor-drill-bit-set-for-wood-4-inch-6-piece) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-12*