hi, yes it should be ok drilling the wheels.Im assuming the holes are 12mm clearance and you want 14mm clearance. You cant do this with a Black& Decker though! Take the wheels to a machine shop. A large floor standing pillar drill will suffice. Drill to 13mm then 14mm then 14.5mm. (nice slow spindle speed say 200-400rpm.) Bear in mind it will break the edges of the paint at the entrance & exit of the holes. Also before you start make sure the couterbores are big enough for the socket to go in (they should be).
Best Regards Roland GTT
'measure twice cut once'
