You really sure want to use D2?
As far as I know (limited knowledge in tooling), D2 is good but once you harden it, it becomes a little bit brittle. A drop onto the floor from good height will chirp the edge from what I heard. If you are looking for tooling steel, no need to look very far. ASSAB STEEL in Batu Caves offer a good variety of it and provide simple milling and hardening service. However not many engineering shop offer profile milling, but you can ask if they will do it or not. ASSAB is generally cost more but all their tool steel are sourced from their parents company in Sweden. Some poeple said Sweden is the best place to source for tool steel.