Internal Coolant Supply8D 5D 3D W/ Oil Hole
140° DCh8 ●HX TypeDMM h6 LCF LU OAL PL
■Recommended CuttingConditions (vc: Cutting Speed m/minf: Feed Rate mm/rev)
Drill Diameter DC (mm)Cutting ConditionsGray Cast Iron FC250Ductile Cast Iron FCD450
U toø30vc50 -70- 9040 -50- 80
p.f0.10 -0.20- 0.300.12 -0.18- 0.24
U toø50vc50 -70- 9040 -50- 80
p.f0.15 -0.25- 0.350.15 -0.22- 0.30
U toø100vc60 -80- 10050 -60- 90
p.f0.20 -0.35- 0.500.20 -0.30- 0.40
U t200vc70 -100- 12060 -80- 100
p oø.f0.25 -0.50- 0.700.25 -0.45- 0.60

Min. - Optimum - Max.

J

Solid Special Indexable Reamer Brazed Others