I need to remove an Ofmega Mistral BB from one of my bikes. It's one of these:



Velobase says I need a "Spanner, Locknut Wrench and Fixed Cup Wrench", but I'm somewhat new to this and don't know exactly what size wrenches I need.

VeloBase.com - Component: Ofmega Mistral

Does anyone know exactly what tools I need to order for this job?