DNMG 150608 Chip Breaker BC Grade FM2538 / DNMG 442 BC #FMCarbide

DNMG 150608 / DNMG 442, chip breaker BC, grade FM2538 — negative 55° rhombic turning insert.

1/2" inscribed circle, 1/4" thick, 1/32" corner radius. The BC breaker is the medium roughing & cast iron geometry: 0.008–0.020 ipr (0.2–0.5 mm/rev) at 0.06–0.16" (1.5–4 mm) depth of cut. FM2538 is a CVD grade — balanced productivity for continuous cuts — high wear resistance with improved toughness.

Specifications

• Insert designation (ISO): DNMG 150608
• Insert designation (inch): DNMG 442
• Insert shape: 55° rhombic (D)
• Clearance angle: 0° — negative (N)
• Tolerance class: M
• Insert type: G — with hole, chipbreaker both sides
• Inscribed circle (I.C.): 1/2" (12.7 mm)
• Thickness: 1/4" (6.35 mm)
• Corner radius: 1/32" (0.79 mm)
• Chip breaker: BC — Steel — medium roughing & cast iron
• Feed rate range: 0.008–0.020 ipr (0.2–0.5 mm/rev)
• Depth of cut range: 0.06–0.16" (1.5–4 mm)
• Grade: FM2538
• Coating: CVD
• ISO application range: P10–P25
• Cutting speed, non-alloy steel: 560–1340 SFM (170–410 m/min)
• Cutting speed, low-alloy steel: 430–1180 SFM (130–360 m/min)
• Cutting speed, high-alloy steel: 260–1020 SFM (80–310 m/min)

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