10'' Core Drill Bit Extension Rod, High-Strength 42Cr4 Steel Extension Adapter for Core Drill Bits, 1-1/4''-7 UNC Thread Extension Rod for Saw Threaded Diamond Hole Diamond Core Drill Bits (1 Pc)
US$15.20
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US$15.20
Price when purchased online
Free shipping
Free 30-day returns
Sold and shipped by mayoriga.com
Free 30-day returns Details
Product details
| Management number | 222688393 | Release Date | 2026/05/04 | List Price | US$15.20 | Model Number | 222688393 | ||
|---|---|---|---|---|---|---|---|---|---|
| Category | |||||||||
- 【Core Drill Bit Extension Rod】Overall Length: 12" (300mm); Effective Working Length: 10" (250mm); Connection: 1-1/4''-7 UNC Thread
- 【High-Strength 42Cr4 Steel】Made from 42Cr4 (DIN 1.7045) high-strength steel with double the strength, torque resistance and wear life of conventional steels. Resists deformation and wear when drilling concrete, granite and stone.
- 【Premium Craftsmanship & Stability】Precision-machined for high straightness and concentricity, ensuring stable high-speed rotation, accurate drilling and reduced bit damage. Hollow design allows water circulation for cooling, dust control and longer service life.
- 【Wide Application】Standard 1-1/4″-7 UNC thread fits both core drill rigs and bits. 10" extension rod easily expands reach for deep hole drilling on ceilings and high walls with no extra tools needed.
- 【Note】Only compatible with 1-1/4″-7 UNC thread. Please confirm thread size before use. Do not use in impact mode. Tool-free installation and removal for higher efficiency, ideal for diamond core drilling rigs.
| Model | 839640002 |
|---|---|
| Brand Name | DENEWERK |
| Unit Count | 1.0 Count |
| Part Number | 839640002 |
| Manufacturer | DEYINENG COMPANY LIMITED |
| Material Type | 42Cr4 Steel |
| Included Components | 10'' Core Drill Bit Extension, with 1-1/4”-7 Thread |
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