Replacement profile for Click n Crimp, suitable for twin bootlace ferrules 2x0.5 ­- 2x6 mm² The Click n Crimp system can be customised to suit the user's specific requirements. It consists of Click n Crimp crimping profile inserts, each of which is designed as a pair-comprising an upper and lower profile jaw-and is specifically suited for crimping twin bootlace ferrules in the range from 2x0.5 to 2x6 mm².