4" Bore Polisher Extension Shafts (54185)

Used these to reach the back of an engine block and they held up perfectly under pressure. The threads cut cleanly into the standard bore polisher, no wobble at all during use.

The thread on these extension shafts is cut cleanly, so they screw onto my polishing tools without any wobble. They've been perfect for reaching the recessed spots on my car's alloy wheels.

Got these for cleaning out some tight spots on my motorcycle engine, and the threading held up solid even under pressure. The 4-inch length is just right for getting into those recessed areas without losing control.