Page 86 - ISCAR(HOLE_MAKING_CATALOG_65)

USER GUIDE
INDEXABLE DRILLS 1 Head and Body Assembly 5 Drilling Limitations

2
3
4

1 MD-DR-DH Inserts Assembly 4
2
3
Flow Rate vs. Pressure & Drill Diameter
Drill Diameter Pressure (bar) Flow Rate
(mm) (liter/min)
33 20 60
34 20 60
35 20 60
Important: 36 20 60
37 20 60
For MD-DR-DH Head
• A short pre-hole 1XD deep (minimum) with H8 38 20 70
hole tolerance should be prepared to guide 39 20 70
the long drill (an endmill can be used) 40 20 70
• Use HD chip breaker for internal insert • Internal coolant supply only
MD-DFN Head Assembly
1 2 3 4

For MD-DFN Head
Max allowed Δ = 0.04 mm
Axial runout & Radial runout

84 ISCAR