According to my CCS inspector the receptical must be rated for the breaker size.Started in the 98 code book i think.A T-slot recpiical rated at 20 amps is the only device they allow here in Ontario and its all you can do if you want to use 15a rated equipment on a 20a circuit.This is for Canada and i knew from the question you were another Canuk. Also at 80% rating 12 amps is the max allowable current draw on a 15 amp breaker according to code so the tool should be factory wired with 20A cord cap if its CSA.
[This message has been edited by frank (edited 09-19-2004).]