Polledri Three Flutes Counterbores Solid Carbide type H-H/T group 0-1-2 in hard metal quality ISO K 30 from Ø 10 to Ø 85. Helix angle 5°. You can fit them in all the Polledri holders of the same group. These counterbores are manufactured to solve all the problems of counterboring head screw and spot facing […]




![[cml_media_alt id='4525']logo_ittc_2.1[/cml_media_alt]](https://www.polledri.it/web/wp-content/uploads/logo_ittc_2.1-e1453904531824.jpg)