Reed 2PK-O Replacement Cutter Wheels, 2-Pack Blade Exposure 0.180-Inch For Use on Copper, Aluminum, Brass and Steel Tubing Reed Cutter: TC1Q; TC1.6Q; TC2Q; T10; T15; T20; MC3; RTC1.1; RTC1.4; RT15T1; RT15T2; RT15T3