Are you sure they are chromed? It is a brittle metal and difficult to cut
without flaking. The lack of corrosion inside or.on the cut end and the
colour make it look more like polished stainless steel to me.
Colin Bignell
Extension Tubes Brass - Slip Joint Chrome Plated - 22 Gauge - Carded
Size Ins.=1-1/4 X 6
http://www.doityourself.com/invt/0922245