
a° di S Rd° ENHT Toroidal Bull Nose Peripherally Ground Inserts with 4 Cutting Edges r Recommended Dimensions Machining Data a p f z Designation di r S a° a e ( min ) a e ( max ) IC908 (mm) (mm/t) ENHT 100408 10.50 0.80 4.20 75 1.00 8.50 • 0.10-1.50 0.10-0.25 ENHT 100410 10.50 1.00 4.20 75 1.00 8.50 • 0.10-1.50 0.10-0.25 ENHT 100415 10.50 1.50 4.20 75 1.00 8.50 MILLING INSERTS • 0.10-1.50 0.10-0.25 ENHT 100420 10.50 2.00 4.20 75 1.00 8.50 • 0.10-1.50 0.10-0.25 ENHT 100425 10.50 2.50 4.20 75 1.00 8.50 • 0.10-1.50 0.10-0.25 ENHT 100430 10.50 3.00 4.20 75 1.00 8.50 • 0.10-1.50 0.10-0.25 • For cutting speed recommendations, see pages 462-498 For tools, see pages: E93CN (234) • E93CN-M (235) • F93CN (236) Machining Recommendations Finishing Plunging Light Medium Heavy Light Medium Heavy ap 0.1 0.5 1-1.5 ae CNHT 1 3 4.5 f mm/t 0.25 0.15 0.1 ENHT 1 4 8.5 f mm/t 0.12 0.1 0.08 Machining Small Corner Radii Machining Long Unsupported Parts Light Medium Heavy Light Medium Heavy ap 0.1 0.5 1-2 ap 0.1 0.5 2 ae 0.1 0.5 1-2 ae 0.1 0.5 0.5 f mm/t 0.25 0.15 0.1 f mm/t 0.25 0.15 0.1 Undercut Light Medium Heavy ap 2 4 6 ae 0.1 0.2 0.3 f mm/t 0.25 0.15 0.1 460 ISCAR