Description

DIAMOND PRODUCTS Shaft Extension Rods

Shaft Extensions easily attach to the core bit and allow for a deeper drilling capacity. Machined metal extensions that allow you to drill deeper than the normal core bit length.  Various sizes and styles available.

Male 5/8″-11 thread to Female 5/8″-11″

Male 1-1/4″-7 thread to Female 1-1/4″-7 (1.250-7″)

Male 1 7/8-7″ thread to Female 1 7/8-7″ (1.785-7″)

Male NWJ thread to Female NWJ