... larger intensity 2.longer lifetime 3.well 4.reliable connection 5.safety A, Shank Sheath is introduced,Product name ... .longer lifetime3.well4.reliable connection5.safetyDrill shank sheath is connection part between drill shanks,and between drill shank and bolt ... characterized by larger intensity,longer lifetime,well and reliable connection D,Ruilong Consciousness,Quality is the enterprise's foundation ...