"Double piston cylinder with built-in check valve and pressure relief valve, best suited for HW-series chucks. The YW*RE series of cyliders also include sensor switches."
"Kitagawa chucks are manufactured from high grade alloy steel. The Kitagawa HW series are four jaw chucks but unlike conventional four jaws it works off a 2+2 system clamping two jaws independently guarantees gripping with all four jaws unlike standa...