Help needed after boring out inlet

[Dan_Henderson]

Hi guys I bored out my top inlet today and I'm now struggling trying to remove the metal powder like shavings from sanding out the inlet holes, I've tryed soaking it in brake cleaner and washing I out in the bath with hot water but can't get rid of it and can't get my hands in to clean it all out

 

[Ol’ Tarby]

Compressed air?

 

[Dan_Henderson]

I'm at home so don't have compressed air

 

[-J-]

Bottle brush / alloy wheel brush and elbow grease.