What you need is a 20mm Erbauer Holesaw cutting tool from B&Q (about £4) and the Erbauer SDS plus to 20UNF Chuck adapter (about £3) - these together put in a cordless drill and hey presto it fits perfectly over the sheared bolt exactly. You drill until you go through the first disc/washer (obvious when you doing it) then it just pops out. Once you’ve removed the wheel the remaining bolt simply twists off the lug or if stubborn use monkey grip. Unfortunately we have had to use this method many times but thankfully takes less than 60 seconds to resolve! Forget all other methods this is the one.
