Tag Archives: 2 FLUTES

Polledri Interchangeable Counterbores 2 Flutes with Insert type HI-HI/T group 0-1-2 in hardness and tempered steel with hardness 42 ÷ 45 HRC, from Ø 18 to Ø 60. Helix angle 7°. You can fit them in all the Polledri holders of the same group. With fixed or rotating pilots, or drills you can execute simultaneous […]

Polledri Two Flutes Interchangeable Counterbores type W group 0-1-2 in HSS hardness 63-HRC from Ø 7 to Ø 40, Helix angle 25°. You can fit them in all the Polledri holders of the same group. With rotatory pilots or drills you can execute simultaneous operations. We advise them for materials with long and normal chip.