5/8"-11 Thread Rotary Extension Shaft Set, 3" & 5" Aluminum Connecting Rod Extender for Car Polisher, Angle Grinder, Backing Plate

No way of connecting wheels as there is no flange. Flange and nut of angle grinder do not fit

There supposed to be a 3-in and a 5 inch adapter the 5-in was missing.

These may be ok for some things, I do not recommend them for cutting. They are very unstable for cutting. Maybe something a smidge shorter may be better but the shortest of the two has every bit of 1/8 wiggle that really throws the cut off.

Worked fine fir my application

De buena calidad y se adapta a los respaldos de las rotativas muy bien

So first off all these can not put a polishing wheel on safe. The threads are to short to put on a safety flang. Threads were to wide to mix with my other extention so I had to machine them to fit. I polish all the time and had to take an hour out of my day to fix these things.

Me hizo realizar mejor mis trabajos de lijar o pulir

While this item is an 11 thread as required it does not come with flange needed to support grinding wheel at top of extention. Grinding wheel slides down extension rather than being supported at top where it's needed. This makes the item useless.