... 93, K: 75, L: 95, M: 50, N: 63, Q: 135, R: 75, S: 45, T: 60, U: 93, V: 72. ... 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 ... P:170mm, Q: 180mm, R: 200mm, S: 250mm, T: 300mm.12: length of cutting edge. OEM set machine tools with carbide indexable inserts