My first kcut order included the brackets that support my FW's lifter, but also fit over the drill motors. Took quite a while of grinding the 30-ish mm holes out with my little rotary tool before I could finally fit them over the motor cans. Plus, expanding a hole with a drill that's almost the size you want (but not quite) is the worst, I find. The tip has nothing to bite into and you end up putting all the pressure on the outside edges of the bit. A real pain if it's Hardox like this. I'll have to try a burr next time.