1-1/4 in. Iron Conduit Bender HeadKlein Tools Conduit Bender Head is designed to handle thin wall EMT up to 1-1/4 in. and rigid IMC up to 1 in. thick. Made from Iron with Klein's advanced casting process for the ultimate in core strength and durability. This head works with the Klein Handle (cat. no. 51429) which is sold separately.