Capable of handling horns up to 2 3/4" (70 mm) in dia...24 volt waterproof dual control switches - release of either control deactivates machine and blades return to open position...develops 18000 lbs of pressure at cutter end...overall length = 16" (406.4 mm)...totally waterproof overall... #6342400 - Counterbalancer 6.56 ft (2 m) cable travel recommended.