@OmarLittle - the Miche BB requires the Campag tool so your Shimano one won't fit.
As for the axle length, I think Miche only do a 107 mm axle length so I think it's safe to assume that's what you'll need to replace it. Be careful when buying a new one as you'll need an BB with ISO taper and not a JIS one (which rules out most Shimano ones).
@OmarLittle - the Miche BB requires the Campag tool so your Shimano one won't fit.
As for the axle length, I think Miche only do a 107 mm axle length so I think it's safe to assume that's what you'll need to replace it. Be careful when buying a new one as you'll need an BB with ISO taper and not a JIS one (which rules out most Shimano ones).