--- product_id: 122676947 title: "EXT06W 6\" Core Bit Extension 1-1/4\"-7 M to F" brand: "concord blades" price: "198 zł" currency: PLN in_stock: true reviews_count: 8 url: https://www.desertcart.pl/products/122676947-ext06w-6-core-bit-extension-1-1-4-7-m store_origin: PL region: Poland --- # Hollow Design: Water Flow Thread: 1-1/4"-7 Shaft Size: 6" EXT06W 6" Core Bit Extension 1-1/4"-7 M to F **Brand:** concord blades **Price:** 198 zł **Availability:** ✅ In Stock ## Summary > 🔧 Extend Your Reach, Elevate Your Game! ## Quick Answers - **What is this?** EXT06W 6" Core Bit Extension 1-1/4"-7 M to F by concord blades - **How much does it cost?** 198 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/122676947-ext06w-6-core-bit-extension-1-1-4-7-m) ## Best For - concord blades enthusiasts ## Why This Product - Trusted concord blades brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **🌊 Innovative Design:** Hollow shaft allows for efficient water flow during wet applications, enhancing performance. - • **💪 Lightweight Power:** Weighing only 3.75 pounds, this extension is designed for easy handling without compromising strength. - • **🔄 Expand Your Toolkit:** Explore our range of extensions to elevate your core drilling capabilities. - • **📏 Precision Engineering:** Crafted with exact dimensions of 6 x 0.5 x 0.5 inches for a perfect fit every time. - • **🔗 Seamless Compatibility:** Easily connects with 1-1/4"-7 male and female threads for versatile applications. ## Overview The EXT06W 6" Core Bit Extension by Concord features a 1-1/4"-7 male to female thread connection, designed for seamless compatibility and enhanced performance in wet applications. Weighing just 3.75 pounds and measuring 6 x 0.5 x 0.5 inches, this extension is both lightweight and precision-engineered, making it an essential addition to your toolkit. ## Description EXT06W 6" Core Bit Extension 1-1/4"-7 M to F ## Features - Shaft Size 6", Thread 1-1/4"-7mm - 1-1/4"-7 male thread to 1-1/4"-7 female thread - We have other extensions available - The shaft is hollow to allow water flow during wet applications ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | Concord | | Part Number | EXT06W_N | | Item Weight | 3.75 pounds | | Product Dimensions | 6 x 0.5 x 0.5 inches | | Item model number | EXT06W_N | | Size | 6" Length, 1-1/4"-7 | | Item Package Quantity | 1 | | Measurement System | Metric | | Included Components | Extension | | Batteries Required? | No | ## Images ![EXT06W 6" Core Bit Extension 1-1/4"-7 M to F - Image 1](https://m.media-amazon.com/images/I/51kUSBgg7tL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect for my use *by J***O on March 15, 2020* Drilled a 4 inch hole 10 inches deep using this extension, (started with the 6 inch 5/8-11 then bought the 12 inch long extension) on a Milwaukee and a Dewalt Angle Grinder, extremely well made for the price, held up to the abuse that I put it through, nicely ### ⭐⭐⭐⭐⭐ Flawless *by I***O on January 8, 2023* Did exactly what was intended to do. It help me bore 3 separate 2.5" holes through a 24" fieldstone foundation. Took the abuse of alot of resistance, never saw hammer mode, and is exactly the way it was sent to me if I ever need to use it again ### ⭐⭐⭐⭐⭐ Yep - works *by D***P on July 11, 2016* This is the text from my review of the Concord Blades CBD04500HP 4-1/2 Inch core drill bit that goes with this extension...=========================================================================It really does just what its supposed to do...I bought this to put a 4" air exhaust duct in, through my foundation - brick face over cement block, about 14" thick. I first used just the drill with the Concord Blades HEX500 Core Bit Adapter.When it was getting too far into the wall I added the Concord Blades EXT06D 6 Inch Core Bit Extension.Drilling freehand was a bit of a trick to get started and it was really tiring, even with my heavy duty drill. I will say that because I went freehand, there was a bit of drift (no surprise) and I did not go 100% straight but the fact that I had a 41/2" hole for a 4" pipe allowed everything to fit easily.I should add that I had my partner on hand with a garden hose to wet the drill while drilling. I don't know how much it helped, especially after it was well into the hole but it did not really get hot which can only be a good thing...All in all, less expensive than renting and I ended up also using it to drill a hole through floor tile for a toilet drain line that I was installing in a bathroom floor. For that I used a simple piece of PVC pipe to help position the drill and reduce drift. It worked great and was far neater than I would have achieved with the grinder and nippers. ## Frequently Bought Together - Concord Blades EXT06W 6" Core Bit Extension 1-1/4"-7 M to F - SALI Wet Diamond Core Drill Bits 4"/102mm Diameter, 15"/380mm Drilling Depth Concrete Core Drill Bit, 1-1/4-7" Thread Core Bit Turbo Laser-Welded Segments with Rebar, Brick, Block, Masonry, Stone - 3/4" Wet Drill Core Bits for Concrete and Hard Masonry, Diamond Hole Saw, 14" Drilling Depth, 5/8"-11 Arbor, Wet Only --- ## 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.pl/products/122676947-ext06w-6-core-bit-extension-1-1-4-7-m](https://www.desertcart.pl/products/122676947-ext06w-6-core-bit-extension-1-1-4-7-m) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-02*