Toolholders Long Type C Polledri Srl Toolholders type C in carburized and hardened steel hardness 60 HRC. You can fit in them rapidly all the Polledri counterbores and countersinks of the same group. To use in machining with guide bushes. INTERCHANGEABLES TOOLHOLDERS LONG TYPE INTERCHANGEABLES SYSTEM, LONG, MORSE TAPER SHANK, TOOLHOLDER 05/10/2023