High efficiency
Improve semi-dry drilling by spiral mist-holes.
AQUA Coat
By Aqua Coating (PAT.P), which is wealthy in the lubrication with the work material and excellent to heat-resistance.
High reliability
It is possible to operate stably due to aqua coating and new geometric. Tipping resistance,wear resistance of corner edge is increase.
Series
Improve semi-dry drilling by spiral mist-holes
Outside corner becomes negative shape
