Mastercool's patented "Hydra - Krimp" makes crimping barbed and beaded fittings as easy as 1 - 2 - 3! The lightweight hand-held hydraulic press is very portable and ideal for shop and field applications. The kit comes with a complete set of dies covering hose sizes #6, #8, #10, #12 and reduced barrier #6, #8, #10 and #12. The dies snap quickly into the press fixture requiring no pins or screws. (patent# 6,324,884) Kit comes in a custom moulded case and includes: MASTERCOOL REFRIGERATION AIR CONDITIONING HOSE REPAIR HYDRA KRIMP TOOL 71500-A