... , H: 107.30, J: 93, K: 75, L: 95, M: 50, N: 63, Q: 135, R: 75, S: 45, T: 60, U ... : 93, V: 72.3, W: 60, X: 120, Y:80.N: inserts clearance angle. B: 5, C:7, D: 15, E ... : 20, N:0, P:11.R: cutting direction. L: left hand, R ... ; right hand, N: neutral.25: height of toolholder25: width of the toolholderM: H ...