AO自身攻丝螺钉
AO self-tapped cortical screw
T型活络柄螺丝刀
screwdriver with turning T-handle
半自动棘轮式螺丝刀
semi-automatic ratchet screw driver
半自动螺丝刀
semi-automatic screwdriver
杯头螺丝
hexagonal socket head cap screw
本色木柄螺丝刀
screwdriver with natural color wooden handle
槽头螺丝刀
recessed-head screw-driver