Steel Dragon Tools heavy-duty, multi-purpose 48-inch core drill bit shaft extension rod for core drilling rigs. The shaft will fit most core drills and will work with wet or dry bits. Shaft extension has 1-1/4 in. x 7 threading and is hollow throughout for wet drilling.

Specifications:
Quantity: Two (2) 24" extentions
Extension Size: 48 in.
Fits wet or dry core drill bit.
For use with most core drills.
Threading: 1-1/4 in. x 7.
Extensions are hollow to allow for wet drilling.