Grooving ChipbreakerGS (Low cutting force) Edge Width CW (mm) Workpiece materialHard materialsSintered steelNon-ferrous metals Insert gradesKBN05MKBN570KPD001 Edge Width CW (mm)Edge Width CW (mm)Edge Width CW (mm) Grooving Recommended cutting conditions KGD: Recommended cutting conditions (feed rate / ap) Workpiece material: S50C Grooving Grooving CW CW f f In the graph below indicates the most recommended value of feed (f) In the graph below indicates the most recommended value of feed (f) 2.5 6 ~8 5 G 40.10.20.33 f (mm/rev) 2 When turning: keep ap less than or equal to the corner-R(RE). 0.05 0.1 f (mm/rev) Note 1. The above values are based on the condition that CDX of toolholder is 17 mm or less. 6 5 4 3 2 0.05 0.10 0.15 0.20 0.25 f (mm/rev) 6 5 4 3 2 0.05 0.10 0.15 0.20 0.25 f (mm/rev) CM chipbreaker [Cutting amount (ap) in back copying] Maximum ap in back copying Maximum ap (mm) Description Toolholder description KGD…-2T… KGD…-3T… KGD…-4T… KGD…-5T… KGD…-6T… GDM 3020N-150R-CM 0.24 0.20 - - - 4020N-200R-CM - 0.24 0.20 - - 5020N-250R-CM - - 0.30 0.20 - ap 6020N-300R-CM - - - 0.30 0.25 G112