INDEXABLE DRILLS USER GUIDE Head and Body Assembly Drilling Limitations 1 2 3 4 5 MD-DR-DH Inserts Assembly 1 2 3 4 Flow Rate vs. Pressure & Drill Diameter Drill Diameter(mm) Pressure (bar) Flow Rate(liter/min) 33 20 60 34 20 60 35 20 60 36 20 60 Important: 37 20 60 For MD-DR-DH Head 38 20 70 • A short pre-hole 1XD deep (minimum) with H8 39 20 70 hole tolerance should be prepared to guide 40 20 70 the long drill (an endmill can be used) • 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