All the KJ jammers have been designed with the same philosophy: 3 concentric jaws that can be separated from their base and have the ability to be operated remotely. Traditional jammers squeeze the line between x2 jaws with a relatively small contact point. The Karver KJ jammer secures the line evenly around its cover with the x3 jaws over a significant length which maximises holding power whilst limiting rope wear. Maintenance is made quick and easy with the conical jammer body removable from the base with a single screw. The base can be bonded to the deck or bolted with x4 M12 fastners (provided). Each jammer can handle a range of line sizes.