[ High Quality Material ]: Tin bronze(Nickel plating). JRready terminals are made of high quality copper, our pin terminals doesn't crack when your correct crimping. We have specially treated the tail barrel to ensure that every crimp will not break.
[ Applicable Solid Barrel Crimper ]: Recommend to use JRready NEW-DT2 & JRD-HDT-48 4 indent crimp tool for crimping. Perfect wire crimper with crimp-proof terminals , you will love JRready tools.