WORK METHODS

THREAD INSERT& METHOD TURNING TYPE TOOLHOLDER TYPE

A, aR.H.R.H.R.H.
B, bR.H.L.H.L.H.
C, cL.H.R.H.R.H.
D, dL.H.L.H.L.H.

THREAD HELIX ANGLE

All Standard Toolholders made with 1 1/2º helix angle.

tgα = P If the helix angle α<1º or α >2º then the anvil must

ΠD change. In case of method B, C, b, c. The anvil must

change to negative anvil.