SPEEDY RJ45 Crimp Tools Cat5e, Cat6, RJ11, RJ12 Connectors – SPEEDYRJ45 TBSPDY3, This replacement blade is for use with the SPEEDY RJ45 TRCSPDY3 crimp tool.Replacing the blade every 500 terminations ensures that crimping performance levels are maintained. TUK Ltd SPEEDY RJ45 TBSPDY3 Spare Cutting Blades For TRCSPDY3 (1 Pair)