FASEN TOOLS Self-Adjusting Ratcheting Square Ferrule Crimper (Red) Crimps 23-10 AWG ferrules;Crimps .5mm 6.0mm metric wire Ratcheting mechinism provides a quality crimp Provides a square crimp for optimum contact in the connection Crimps 23-10 AWG ferrules;Crimps .5mm 6.0mm metric wire Hsc8 6-4 Ratcheting Square Ferrule Crimper Plier Self-adjustable Crimping Tool