Machininng center / made by A company Dia. 1.0mm drill at 6,000r.p.m. / continuous drilling
【TEST A】 Drill : dia. 1.0mm L=16mm high speed drill Material : SKD11 t=8mm Parameter : 6,000r.p.m Conditions : Through hole	【TEST B】 Drill : dia. 1.0mm L=16mm high speed drill Material : SKD11 t=20mm Parameter : 6,000r.p.m Conditions : Blind hole 15mm
Same drill used for test A and B. Test A = We found no problem with or without Auto Balancer Test B = Drill broke at d=11mm for the first blind hole without Auto Balancer. 8 holes were drilled without any problem with Auto Balancer. Only slight wear of a drill found.