IM A MACHINIST AND IM GOING TO MAKE UP A SPACER(WASHER) FOR MY DX200 RED, FOR THAT USELESS SPACE BETWEEN THE FOCUS KNOB AND THE LASER HEAD, IF ANY ONE WANTS ONE , ILL MAKE EXTRAS. JUST PAY FOR THE SHIPPING.
LOOKS LIKE .482 FOR THE HOLE, .710 FOR THE OUTSIDE DIAMETER, AND BETWEEN .035 AND .040...