(备注：此处信息为产品组总体信息，仅供参考。)
·Proto Spline tools are designed to service high tensile strength fasteners used widely on military and commercial aircraft and heavy machinery applications where vibration is prevalent. Also used in automotive and industrial areas where high performance torque needs to be achieved.
·Spline sockets help tighten high strength bolts to high torque loads.Theyhelp lower the force required to turn standard fasteners by allowing the torque load to be moved away from the corners to help prevent fastener rounding.They also turn fasteners with damaged corners.
·Spline sockets on spline fasteners help deliver twice the torque of 12pt.wrenches on double box fasteners,and more torque than hex wrenches on hex fasteners.
·Spline helps reduce foreign object debris(FOD)by having a precise fit between the fastening tool and its fastener.

·Proto 花键套筒是专为高强度螺栓而设计的，这些螺栓被广泛应用在军用和民用飞机以及重型机器上，在那些场合震动是很普遍的。它们还被运用在汽车和工业上，那里需要强扭矩
·花键套筒可以拧紧高强度螺栓使其达到高扭矩。它能在达到螺栓允许的扭矩时防止在拧的过程中螺栓被磨圆，通过避免接触螺栓的棱角，并降低所用的力。同时它还能拧那些棱角已损坏的螺栓
·花键套筒拧花键头螺栓可以比12角的套筒增加1倍的扭矩
·由于套筒与紧固件的紧密配合，花键型可以降低Foreign Object Debris (FOD) 的风险