SHDIATOOL 6 Inch Extension Rod for Core Drill Bits with 1-1/4 Inch UNC Thread

SKU: A698406

Size: 6 inch

Quantity: 1pc only 


Shaft Size 6 Inch or 12 Inch Thread 1-1/4" UNC, 1-1/4"-7 male thread to 1-1/4"-7 female thread

Shaft Size 6 Inch : Total length 200MM, Workable length 160mm

Shaft Size 12 Inch : Total length 350MM, Workable length 300mm


  • Work status for connecting with diamond core bits.

  • Could be used for drill bits with 1-1/4" UNC thread.


1. Good quality steel, long life.

2. The shaft is hollow to allow water flow during wet applications.


Standard Free Shipping:

US&CA 10-15 Days | MX 15-30 Days | AU&NZ 8-15 Days | Europe 5-15 Days

Expedited Shipping:

If you need DHL Express,
Contact us now: Whatsapp: 189 5255 1577 Email: or online chat.


Q:What material can this drill bit work on?

A: SHDIATOOL drill bits usually are able to work for various materials, please check our product description and product image to see details.

Q: How can I know if this drill bit is suitable with my machine?

A: Please check your machine manual on the thickness and size of/where the arbor is, make sure these details is fine with this drill bit. Don’t worry if you have problem with the thread, SHDIATOOL has adapter solution for you too.

Q: How long can drill bit last?

A: Proper using and maintenance helps your SHDIATOOL drill bits work longer, make sure it under MAX RPM and nice temperature while working.

Still have questions? Contact us now: 189 5255 1577 or online chat.

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