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The WALTER 6188172 is a round ceramic turning insert designed for high-performance metal cutting in demanding machining environments. Carrying the industry standard designation RNGN45T01020 WIS10, this insert features an uncoated ceramic substrate with a manufacturer grade of WIS10 and a material grade of S10. The 0.5-inch inscribed circle and 0.25-inch corner radius define its cutting geometry, while the T-Land cutting edge style and negative rake angle of -20 degrees deliver controlled, stable engagement. With 8 cutting edges per insert and a full-radius round shape, this insert is well suited for high-temperature alloy cutting where tool life and edge integrity are critical priorities for machinists and tooling specialists.
This insert is engineered primarily for turning, facing, and boring operations on superalloys and titanium, making it a standard choice in aerospace, power generation, and advanced manufacturing shops. The RNGN insert style uses a clamp holding method and carries a neutral hand designation, fitting a broad range of toolholders that accept the RNGN series. The flat-top chip breaker geometry and uncoated ceramic finish are specifically suited to the elevated cutting speeds and heat profiles generated when machining nickel-based superalloys and titanium alloys.
Designed to fit RNGN-style clamp toolholders accepting a 0.5-inch inscribed circle round insert. Compatible with tooling systems conforming to ANSI and ISO standards for the RNGN insert series. Verify toolholder pocket specifications before installation.
Insert installation should be performed by a qualified machinist or tooling technician with the machine fully powered down and spindle locked. Use the appropriate torque wrench and clamp hardware specified by the toolholder manufacturer when seating the insert. Inspect the toolholder pocket for wear or debris before seating a new insert. Follow the toolholder manufacturer's guidelines for clamp torque and insert orientation to ensure proper seating and safe operation.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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