The new pneumatic switch of sandblasting machine changes the traditional finger pressing to palm pressing, so as to reduce the labor intensity. Specification: Material: aluminum alloy Working pressure: 0.4 ~ 0.8MPa Air inlet: 8mm Air outlet: 8mm Size: 235 * 40 * 50mm Trachea connector: 1 / 8 Package Included: 1 x Switch Air control switch for sandblasting machine: Made of aluminum alloy, more comfortable and safer. This switch: 3-5 times the life span of an ordinary pneumatic switch