Review on MroMax M18X1 5Mm Retaining Four Slot Slotted by Pete Juarez

I bought these for a mini lathe spindle. One of the two original nuts that came with the lathe had four built in magnets for the tach sensor and kept popping out at high speeds. I drilled deeper holes in one of these new nuts and glued the magnets in. Everything works perfectly. Only one of them costs more than 6.00 from a supplier of turned parts. I got four for 10.00.