Yuyao JEFN tools factory 4 years ago ID: #251711 Listed In : Advocates No.10Century Road Doumen Industrial Zone,Yu Yao City,Zhe Jiang 86-574-22695855 www.jiefeng-tools.com Business Description Pneumatic impact sleeves are specially used with pneumatic impact wrenches. If ordinary sockets are used, the pneumatic impact wrenches will produce instant strong impact when working, which may damage the sleeves. Reviews & Ratings Write a Review No Review. Please login / register to add your review. Tags : T type wrench