The MP 257 is the technology that got Schleuniger's started. It is a fully programmable coaxial cable preparation machine. Simply insert the coax cable and the MP 257 removes the cable's outer jacket, the shield, and the inner dielectric material to precise dimensions. The final assembly of any RF connector system is much more reliable using such precise prep equipment. The manual alternative (and most common method) is extremely slow and inaccurate by comparison. The MP257 is truly amazing cable processing technology.