CCMT 09T304 / CCMT 32.51, chip breaker BF, grade FM524 — positive 80° rhombic turning insert.
3/8" inscribed circle, 5/32" thick, 1/64" corner radius. The BF breaker is the Finishing geometry: 0.002–0.008 ipr (0.05–0.2 mm/rev) at 0.02–0.06" (0.5–1.5 mm) depth of cut. FM524 is a CVD grade — gray cast iron and very stable steel — the hardest substrate with CVD coating for extreme wear resistance.
Specifications
-
Insert designation (ISO): CCMT 09T304
-
Insert designation (inch): CCMT 32.51
-
Insert shape: 80° rhombic (C)
-
Clearance angle: 7° (C)
-
Tolerance class: M
-
Insert type: T — with hole, countersunk one side, chipbreaker one side
-
Inscribed circle (I.C.): 3/8" (9.52 mm)
-
Thickness: 5/32" (3.97 mm)
-
Corner radius: 1/64" (0.4 mm)
-
Chip breaker: BF — Finishing
-
Feed rate range: 0.002–0.008 ipr (0.05–0.2 mm/rev)
-
Depth of cut range: 0.02–0.06" (0.5–1.5 mm)
-
Grade: FM524
-
Coating: CVD
-
ISO application range: P01–P10 · K10–K25
-
Cutting speed, non-alloy steel: 720–1570 SFM (220–480 m/min)
-
Cutting speed, low-alloy steel: 720–1380 SFM (220–420 m/min)
-
Cutting speed, grey cast iron: 560–1380 SFM (170–420 m/min)
-
Cutting speed, nodular cast iron: 390–1340 SFM (120–410 m/min)
Grade & chip breaker selection chart →
Turning insert designations explained · Using a turning formula calculator
