i had the problem to adapt the Bosch GLI 18V on a Stand wich is from my laser messuring tool and has another screwing.

so this adapter is for M16x2 thread to the 5/8" thread wich is part of the Bosch GLI LED lamps.

I added the STEP file, so you can adjust for your puposes.

I printed it with 100% infill and Eyrone PETG-CF for a strong part, cause the lamp wight, with an 8 amp pro core batterie, quite a bit