TUBE EXPANDERS FITTED WITH ROLLER LENGTH • Use : Highly recommended for use on thin walled tubes (19 thru 22 gage walls) of Stainless Steel, Titanium, Incoloy and other exotic materials in thick tube sheets. • Advantages : Gives a more concentric and even expansion when expanding thin walled tubes vs. a conventional 3 roll expander and reduces tube spring back effect. • Expanders for tube sizes not listed below are also available. Please enquire. For best results a ‘Thin Wall Thrust Collar’ should be used when rolling 19 thru 22 gauge wall tubes. (See Pg. 5) Model 1223-5 - 1258-5 expanders come with 3/8” square mandrel drives and Model 1263-5 - 1300-5 expanders come with 1/2” square mandrel drives.