Improve semi-dry drilling by spiral mist-holes.
By Aqua Coating (PAT.P), which is wealthy in the lubrication with the work material and excellent to heat-resistance.
It is possible to operate stably due to aqua coating and new geometric. Tipping resistance,wear resistance of corner edge is increase.
- LIST9558 for 3D
- LIST9554 for 5D
- LIST9556 for 7D
Improve semi-dry drilling by spiral mist-holes
Outside corner becomes negative shape