Expert Quality, carbon steel hardened & tempered with chemically blacked finish for corrosion protection. For crimping F connectors to BNC, TNC, RG6, RG58, R58, RG59 & RG62 co-axial cable. Hex. die sizes. 038, . 100, . 213, . 256 &. 324. PVC cushion grip handles for operator comfort. Display packed.