TNMG 160404 Chip Breaker BF Grade FM2553 / TNMG 331 BF #FMCarbide

TNMG 160404 / TNMG 331, chip breaker BF, grade FM2553 — negative triangular turning insert.

3/8" inscribed circle, 3/16" thick, 1/64" corner radius. The BF breaker is the finishing geometry: 0.002–0.010 ipr (0.05–0.25 mm/rev) at 0.02–0.06" (0.5–1.5 mm) depth of cut. FM2553 is a CVD (Al₂O₃) grade — tough substrate for heavy interrupted cuts in steel and stainless, heavy roughing in mild steel, and first choice for superalloys.

Specifications

• Insert designation (ISO): TNMG 160404
• Insert designation (inch): TNMG 331
• Insert shape: triangular (T)
• Clearance angle: 0° — negative (N)
• Tolerance class: M
• Insert type: G — with hole, chipbreaker both sides
• Inscribed circle (I.C.): 3/8" (9.52 mm)
• Thickness: 3/16" (4.76 mm)
• Corner radius: 1/64" (0.4 mm)
• Chip breaker: BF — Steel — finishing
• Feed rate range: 0.002–0.010 ipr (0.05–0.25 mm/rev)
• Depth of cut range: 0.02–0.06" (0.5–1.5 mm)
• Grade: FM2553
• Coating: CVD (Al₂O₃)
• ISO application range: P20–P35 · M10–M30
• Cutting speed, non-alloy steel: 490–1150 SFM (150–350 m/min)
• Cutting speed, low-alloy steel: 300–980 SFM (90–300 m/min)
• Cutting speed, high-alloy steel: 230–820 SFM (70–250 m/min)
• Cutting speed, ferritic & martensitic stainless: 390–750 SFM (120–230 m/min)
• Cutting speed, austenitic stainless: 260–660 SFM (80–200 m/min)
• Cutting speed, titanium & super-alloys: 110–260 SFM (35–80 m/min)

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01 / SELECTION

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