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Korloy ONMX080608-MF PC6510
Upgrade your cast-iron milling with the Korloy ONMX080608-MF PC6510—16-edge, 6mm thick insert in PC6510 cast-iron grade with MF chip-breaker for light-cut finishing. Ideal for high-feed face milling. Available at CNC Tools Depot, India’s largest carbide-insert marketplace.
Cut more parts, save more per job.
The Korloy ONMX080608-MF PC6510 is a high-efficiency carbide milling insert designed to deliver superior productivity, tool life, and surface finish in cast iron machining. Built for the Rich Mill RM16 face-milling system, it offers 16 cutting edges per insert—doubling your productivity while reducing cost per component.
Korloy’s PC6510 grade is a premium PVD-coated carbide engineered specifically for cast-iron applications. Its optimized micro-grain substrate, heat-resistant coating, and special surface treatment minimize flank wear and thermal cracking even under high-speed or dry-cut conditions. This means stable performance, consistent quality, and longer tool life—shift after shift.
Hook / Attention Line
Cut more components per shift, with fewer change-overs and lower cost per part – the Korloy ONMX080608-MF PC6510 delivers longer life, faster cutting and more stability on cast-iron jobs.
Key Features & Specs
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Geometry / Designation: ONMX 080608-MF — Inscribed circle Ø 20.2 mm, thickness 6 mm, hole Ø 5.6 mm, corner radius 0.8 mm.
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Grade: PC6510 – developed by Korloy specifically for cast-iron machining, with optimized PVD coating and special surface treatment for high wear resistance and thermal crack resistance
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Chip-breaker: MF (finishing / light-cut) – designed for low cutting force and excellent surface finish in light milling of cast iron.
Series/Usage: Part of the Rich Mill RM16 family (16-edge double-sided design), offering high productivity for face-milling operations with aggressive feed-rates. -
Intended Application: Primarily face-milling (45°/45° style) of cast iron components (ductile or grey cast iron) – although the geometry is strong enough for other general engineering milling tasks
Why It’s a Best Seller
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Fewer tool changes = less downtime – the 16-edge double-sided insert enables more indexing before replacement.
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Proven stability – PC6510 grade with special coating resists build-up‐edge, chipping and thermal cracks when machining cast iron, giving more consistent tool life.
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Better surface finish – MF chip-breaker and optimized geometry mean smoother cuts, less rework and better part quality.
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Lower cost per component – high number of edges + reliable life = lower tooling cost per part, especially in high-volume cast-iron work.
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Trusted brand & stock availability in India via CNC Tools Depot – makes it easier to plan jobs without fear of long lead times
🏭 Application Industries
✔ Automotive – cylinder blocks, crankcases, brake housings (cast iron)
✔ Aerospace – cast-iron structural or accessory components
✔ Die & Mold – cast-iron molds, frames or accessories requiring fine finish
✔ General Engineering – machine-tool bases, grey/ductile cast-iron components where face-milling is required
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Frequently Asked Questions
It is engineered primarily for cast-iron materials (grey or ductile), where heavy chip formation and thermal loads occur. The PC6510 grade is optimized for this
While the ONMX geometry with PC6510 grade is optimized for cast iron, it may be used in general milling of engineering materials, but for steel or stainless steel you may get better life/performance using a grade specific to those materials. Check cutting data with our experts at CNC Tools Depot.
The MF chip-breaker is designed for light-cut finishing applications with low cutting force, giving better surface finish and longer tool life in lighter milling.
As part of the Rich Mill RM16 family, the ONMX080608-MF design offers 16 cutting edges (double-sided) which means more indexing opportunities and better economy
Because CNC Tools Depot is India’s largest marketplace for carbide inserts — meaning better availability, faster delivery, and local support. You get the genuine Korloy product backed by trusted stocking and support. Order bulk, check stock via WhatsApp, and minimize downtime.
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