By Aqua Coating (PAT.P), which is wealthy in the lubrication with the work material and excellent to heat-resistance.
Efficiency is 2.5 times of conventional coated drill in high wet drilling.
It is possible to operate stably due to aqua coating and new geometric. Tipping resistance,wear resistance of corner edge is increase.
AQUA Drill Stub (L9550), AQUA Drill Regular (L9552)
Cutting edge with excellent