--- product_id: 583036867 title: "1-1/4\"-7 Male to 1/2\" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability." brand: "ediamondtools" price: "€ 126.23" currency: EUR in_stock: true url: https://www.desertcart.hr/products/583036867-1-1-4-7-male-to-1-2-shank-core store_origin: HR region: Croatia --- # 1/2" Shank 1-1/4"-7 Male Heat-treated Steel 1-1/4"-7 Male to 1/2" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability. **Brand:** ediamondtools **Price:** € 126.23 **Availability:** ✅ In Stock ## Summary > 🔧 Elevate Your Drilling Game! ## Quick Answers - **What is this?** 1-1/4"-7 Male to 1/2" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability. by ediamondtools - **How much does it cost?** € 126.23 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/583036867-1-1-4-7-male-to-1-2-shank-core) ## Best For - ediamondtools enthusiasts ## Why This Product - Trusted ediamondtools brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Precision Fit:** Seamlessly connects 1-1/4"-7 Male to 1/2" Shank core bits. - • **Rotary Mode Only:** Engineered for optimal performance in rotary mode. - • **Lightweight Design:** Weighs only 4.54 g for easy handling and maneuverability. - • **Unmatched Durability:** Crafted from heat-treated steel for extended lifespan. - • **Proudly Made in the USA:** Support local craftsmanship with this high-quality adapter. ## Overview The 1-1/4"-7 Male to 1/2" Shank Core Drill Adapter by EDiamondTools is a robust and reliable tool designed for professional use. Made from heat-treated steel, this adapter ensures long-lasting durability and is specifically engineered for rotary mode applications. Weighing just 4.54 g, it offers a lightweight solution for seamless core bit connections, proudly manufactured in the USA. ## Description 1-1/4"-7 Male to 1/2" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability. ## Features - Drill Adapter 1-1/4"-7 Male to 1/2" Shank for Core Bits - ROTARY MODE ONLY - use on rotary mode only, please do not use hammer mode - Heat-treated steel with high strength for longer durability. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | EDiamondTools | | Country of Origin | USA | | Item part number | ADJ01 | | Package Dimensions | 10.8 x 4.5 x 4.3 cm; 4.54 g | | ASIN | B01F4IQOE8 | ## Images ![1-1/4"-7 Male to 1/2" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability. - Image 1](https://m.media-amazon.com/images/I/51j6SwdMbtL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I have never seen an sds max rotary hammer that can do rotation only. Doesn't hammering while drilling take off the diamonds on the drill bit?** A: Hammer mode will not work with core bits, rotation only is a must. I ended up purchasing a SDS plus adapter instead so I could use my core bit with a Bosch Bulldog SDS plus drill that has a rotation only mode. My Bosch SDS Max drill does not have a rotation only mode and turned out useless for core drilling. **Q: using 11/4 macho B&D rotary, uses spline bits, drilling 2 inch hole in 8 inch block. what do you suggest?** A: This solid bit fits several different core bits and works well even up to my 4 5" cote bit, but if your rotary drill will only hammer drill and not just drill you will ruin your bit. The core bits are designed to rotate only. No hammering. **Q: Does the 5/8"-11 Male to 1-1/4"-7 Female core bit adapter have a central hole thru the entire adapter to allow for wet drilling?** A: It does have the hole **Q: the headline says spline to 1 1/4 threaded but the picture shows 5/8 threaded. Can you clarify which one it is?** A: It's actually 5/8 threaded. We'll correct that. ## Frequently Bought Together - 1-1/4"-7 Male to 1/2" Shank Core Drill Adapter for Core Bits. Heat-treated steel with high strength for longer durability. - 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 - HBKEEN 2 Inch Wet Diamond Core Drill Bits, 14" Drilling Depth Core Drill Bits, 1-1/4"-7 Thread Core Drill Bits for Concrete, Reinforced Concrete, Brick, Block, Core Bit with Laser-Welded Mesh Segments --- ## 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.hr/products/583036867-1-1-4-7-male-to-1-2-shank-core](https://www.desertcart.hr/products/583036867-1-1-4-7-male-to-1-2-shank-core) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-04-26*