
USER GUIDE BHR Rough Boring Cutting Data Boring Range Boring Range Boring Range ITS BORE Workpiece Hardness Overhang ap (mm) D18-28 D28-50 D50-68 Material HB L/D R (Radius) 0.5-1.0 1.0-1.8 0.5-1.0 1.0-1.8 0.5-1.2 1.2-2.0 ISO 0.2 0.4 0.2-0.4 0.4 0.2-0.4 0.4-0.8 Vc (m/min) 100-150 110-130 120-160 100-150 120-160 110-160 2.5 ● ● ● f (mm/rev) 0.08-0.15 0.06-0.12 0.08-0.18 0.06-0.12 0.08-0.25 0.08-0.18 Stainless Ferritic & Vc (m/min) 90-130 90-120 100-140 90-140 100-150 80-120 4 Steel Martensitic ● ● f (mm/rev) 0.08-0.12 0.06-0.1 0.08-0.12 0.06-0.1 0.08-0.18 0.08-0.12 Vc (m/min) 60-90 50-70 60-90 50-70 70-100 50-70 6.3 ● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.12 0.06-0.1 0.06-0.15 0.08-0.1 Vc (m/min) 110-130 100-130 120-150 110-140 110-160 100-150 2.5 ● ● ● f (mm/rev) 0.08-0.15 0.06-0.12 0.08-0.18 0.06-0.12 0.08-0.25 0.06-0.12 Stainless Vc (m/min) 80-110 80-110 90-130 90-120 100-150 90-130 Austenitic 4 Steel ● ● f (mm/rev) 0.08-0.12 0.06-0.1 0.08-0.12 0.06-0.1 0.08-0.18 0.06-0.1 Vc (m/min) 60-90 50-70 60-90 50-70 70-100 50-70 6.3 ● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.12 0.06-0.1 0.06-0.15 0.06-0.1 M Vc (m/min) 90-130 100-130 120-150 110-140 120-160 100-150 2.5 ● ● ● f (mm/rev) 0.08-0.15 0.06-0.12 0.08-0.18 0.06-0.12 0.08-0.25 0.06-0.12 Cast Ferritic & Vc (m/min) 70-110 80-110 90-130 90-120 100-150 90-130 Stainless 4 Martensitic ● ● f (mm/rev) 0.08-0.12 0.06-0.1 0.08-0.12 0.06-0.1 0.08-0.18 0.06-0.1 Steel Vc (m/min) 60-90 50-70 60-90 50-70 70-100 50-70 6.3 ● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.12 0.06-0.1 0.06-0.15 0.06-0.1 Vc (m/min) 80-120 70-110 100-150 90-140 110-150 100-150 2.5 ● ● ● f (mm/rev) 0.08-0.15 0.06-0.12 0.08-0.18 0.06-0.1 0.08-0.25 0.06-0.12 Cast Vc (m/min) 70-100 70-100 80-130 70-120 90-140 90-130 Stainless Austenitic 4 ● ● f (mm/rev) 0.08-0.12 0.06-0.1 0.08-0.12 0.06-0.1 0.08-0.18 0.06-0.1 Steel Vc (m/min) 60-90 50-70 60-90 50-70 70-100 50-70 6.3 ● f (mm/rev) 0.06-0.1 0.06-0.1 0.06-0.12 0.06-0.1 0.06-0.15 0.06-0.1 Stability ● ● ● – Good ● ● – Normal ● – Poor Ø Ø Ø A A A1 A IHSR IHSR IHSR PLT IHSR IHCR IHSR L D In case of a single or a stepped boring cutter configuration, only half the feed should be applied. 824 824 ISCAR ISCAR