... approach angle. A: 90, B: 75, C: 90, D: 45, E: 60, F: 90, G: 90, H: 107.30, J: 93 ... : 75, L: 95, M: 50, N: 63, Q: 135, R: 75, S: 45, T: 60, U: 93, V: 72.3, W: 60 ... : 5, C:7, D: 15, E: 20, N:0, P:11.R: cutting direction. L: left hand, R; right hand, N: neutral.25 ... :100mm, K: 125mm, M: 150mm, P:170mm, Q: 180mm, R: 200mm, S: 250mm, T: 300mm.12: length of cutting edge. OEM set ...