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Hitachi JDMT 100308R-FW JP4020
The Hitachi JDMT 100308R-FW JP4020 is a premium carbide turning insert – engineered with JP4020 grade for high wear resistance, ideal for steel and pre-hardened materials, delivering longer tool life and superior surface finish. Stock available now at CNC Tools Depot.
Maximise productivity and minimise tooling cost with the Hitachi JDMT 100308R-FW JP4020 – a benchmark insert trusted across machining industries.
Key Features & Specifications:
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Geometry & Grade: JDMT series insert with FW chip-breaker style, combined with the high-performance JP4020 grade coating. According to Hitachi’s official insert grade guide, JP4020 is targeted at work-piece hardness up to ~50 HRC, and supports steel, stainless and cast-iron machining with strong wear resistance.
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Coating: The JP4020 grade is a PVD-type high-toughness coating developed for continuous cutting conditions including pre-hardened steels.
Applications: Ideal for turning operations of steel, stainless, cast iron, and pre-hardened materials. Also suitable where smooth surface finish and minimal insert downtime are required.
Why It’s a Best Seller:
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Reduced downtime thanks to high wear-resistance of the JP4020 grade – fewer index changes, longer runs.
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Excellent surface finish and dimensional accuracy achieved due to stable edge retention and consistent coating performance.
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Lower cost-per-component as insert life extends, and less scrap/rework is needed owing to smoother cutting.
Application Industries:
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Widely adopted across automotive (shafts, engine components), aerospace (precision turned parts), die & mould (pre-hardened steels, high-tolerance features), and general engineering (shafts, bores, cast-iron components).
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Why choose CNC Tools Depot: As India’s largest marketplace for carbide inserts, we stock premium brands, offer bulk pricing, rapid dispatch, and reliable authenticity.
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Frequently Asked Questions
The insert is designed for steel, stainless steel, cast iron and pre-hardened materials up to around 50 HRC, thanks to its JP4020 grade coating.
JP4020 is a high-toughness PVD-type coating developed for continuous turning and harder work-piece materials (such as pre-hardened steels). According to Hitachi grade charts, it is positioned for work-hardness groups IV & V (~40-50 HRC) and can be used on stainless steels as well.
Yes. The “FW” chip-breaker in the JDMT 100308R-FW series optimises chip control and edge stability, making it suitable for heavier cuts and stable turning operations, which contributes to longer tool life and better finish.
CNC Tools Depot specialises in carbide inserts, stocks premium brands like Hitachi, offers verified authenticity, bulk-order options, and fast dispatch in India – helping minimise lead time and inventory risks.
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