STRAIGHT HANDLE SEAMER - Use to bend or form sheet metal and other pliable sheet materials INTERCHANGEABLE BLADES - Includes 5" and 9" interchangeable aluminum seamer blades with quick change over HEAVY DUTY COMPONENTS -Brackets are hot drop-forged of high carbon steel for strength and durability STRONGEST HANDLES - High tensile strength steel will not bend from hand pressure and provides efficient conversion of hand force COMFORTABLE GRIPS - Kush'N-Power grips conforms with the motion of the user's hands and the indented ribs prevent hand and finger slippage