Drill a gliding hole for a 1.0 mm screw, as perpendicularly to the fracture
plane as possible, using a 1.0 mm drill bit.
Use a 0.8 mm drill bit to drill a thread hole in the opposite fragment, just
through the far (trans) cortex.
Be careful to select appropriately-sized instruments. The use of too large
drill bits or screws may result in fragmentation.