--- product_id: 25291090 title: "4\" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring" brand: "bluerock" price: "£138.96" currency: GBP in_stock: true reviews_count: 8 category: "Bluerock" url: https://www.desertcart.co.uk/products/25291090-4-inch-diamond-wet-core-drill-bit-1-1-4 store_origin: GB region: United Kingdom --- # 4-inch diamond tip for precision cutting Wet core drilling for cooler, cleaner cuts 1-1/4” industry-standard threaded shank 4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring **Brand:** bluerock **Price:** £138.96 **Availability:** ✅ In Stock ## Summary > 💎 Drill smarter, not harder — unlock precision and power with every core! ## Quick Answers - **What is this?** 4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring by bluerock - **How much does it cost?** £138.96 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/25291090-4-inch-diamond-wet-core-drill-bit-1-1-4) ## Best For - bluerock enthusiasts ## Why This Product - Trusted bluerock brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Optimized Wet Drilling:** Wet core design reduces heat and dust, extending bit life and improving job site safety. - • **Trusted Professional Grade:** BLUEROCK’s durable construction ensures reliable performance on demanding projects—don’t get left behind. - • **Universal Thread Compatibility:** Fits seamlessly with BLUEROCK Z1 Core Drills and other 1-1/4” threaded tools for instant use. - • **Precision Diamond Cutting Power:** Cut through concrete, rebar, asphalt, and masonry effortlessly with a 4” diamond-tipped blade. - • **Robust 17” Length with 14.5” Barrel Depth:** Deep core drilling capability for thick walls and reinforced materials without compromise. ## Overview The BLUEROCK 4" Diamond Wet Core Drill Bit features a 4-inch diamond tip and a 1-1/4” threaded shank compatible with industry-standard core drills. Designed for wet core drilling, it efficiently cuts through concrete, rebar, asphalt, brick, and masonry with a 17-inch overall length and 14.5-inch barrel depth, delivering professional-grade durability and precision for demanding construction tasks. ## Description 4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - desertcart.com Review: Good bit - Cut through a 12in stem wall and rebar with no problem. Review: Buen producto ## Features - 4” Wet Type Diamond Tip Concrete Coring Bit BLUEROCK BRAND - Thread Type: Industry Standard 1 1/4" (Directly fits our BLUEROCK Z1 Core Drills) - 4” Outside Diameter, Overall Length: 17” Approximate, Inside Barrel Depth: 14.5" - Wet core drilling through concrete, rebar reinforced, asphalt, rock, stone, tile masonry - See the BLUEROCK brand page for diamond core bit sets and all sizes ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NPDOY56 | | Best Sellers Rank | #576,953 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #423 in Core Drill Bits | | Brand Name | BLUEROCK | | Customer Reviews | 4.6 4.6 out of 5 stars (38) | | Cutting Diameter | 4 Inches | | Finish Types | Diamond | | Manufacturer | BLUEROCK TOOLS | | Material Type | Diamond | | Minimum Bore Diameter | 4 Inches | | Model | WET 4" CB AZ | | Number of Flutes | 2 | | Part Number | WET 4" CB AZ | | Point Style | Diamond Point | | Shank Type | Threaded | | Surface Recommendation | concrete | | Tool Flute Type | Straight | | UPC | 702874145435 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** BLUEROCK - **Cutting Diameter:** 4 Inches - **Finish Type:** Diamond - **Material:** Diamond - **Shank Type:** Threaded ## Images ![4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - Image 1](https://m.media-amazon.com/images/I/512TOE2hK9L.jpg) ![4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - Image 2](https://m.media-amazon.com/images/I/61xo3CQ7VIL.jpg) ![4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - Image 3](https://m.media-amazon.com/images/I/61e1f3P1yjL.jpg) ![4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - Image 4](https://m.media-amazon.com/images/I/6175bo5m8fL.jpg) ![4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - Image 5](https://m.media-amazon.com/images/I/5133f9sBLWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good bit *by J***L on November 25, 2025* Cut through a 12in stem wall and rebar with no problem. ### ⭐⭐⭐⭐⭐ Review *by M***A on August 9, 2025* Buen producto ### ⭐⭐⭐⭐ Tooth Broke BUT Bluerock is making it right *by R***I on March 24, 2023* EDIT: Bluerock reached out to me and has offered to send a replacement bit via 2 day shipping which we have accepted. Hopefully the broken tooth was just a rare occurrence, the bit did seem to work well (and probably would still drill with a broken tooth but using it that way is not recommended). Thanks Bluerock for standing behind your product. Original review: I'm not sure what the expectation is of these bits but it worked ok, however after about a dozen cores in cured concrete sidewalks (about 4"-6" thick) I realized it was missing a tooth. I'm guessing it would still cut but everything I read said not to use them if a tooth is missing. We used plenty of water and drilled slowly without applying too much pressure so I'm not sure why this bit failed. ## Frequently Bought Together - 4" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - 3" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring - 2" Inch Diamond Wet Core Drill Bit 1-1/4” Threaded by BLUEROCK Tools for Concrete Rebar Asphalt Brick Rock Masonry Hole Barrel Coring --- ## 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.co.uk/products/25291090-4-inch-diamond-wet-core-drill-bit-1-1-4](https://www.desertcart.co.uk/products/25291090-4-inch-diamond-wet-core-drill-bit-1-1-4) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-16*