Turning tools CoroTurn® PI Secure and efficient internal turning CoroTurn® PI brings security and precision where demands are high and space is limited, applying our PrimeTurning™ method- ology with small entering angles and multi-directional turning, now paired with a precisely engineered chip breaker. Application — Internal turning operations where stability and chip control are critical — Diameters from 20 to 50 mm (0.787 to 1.968 inch) and a maximum depth of 2.5 × DC — Grades GC4415, GC4425, GC2220 and GC1205 — Components such as connection hubs, ring gears and shafts with holes Features and benefits — Combines roughing and finishing inserts in a sin- gle tool, reducing cycle time — Increases productivity with the PrimeTurning™ methodology ISO application area — High-precision chip breaker provides consistent quality, enabling automation — Roughing inserts with eight cutting edges in- crease cost efficiency From roughing to finishing in a single set-up CoroTurn® PI features two dedicated insert seats, one for roughing and one for finishing, allowing you to complete both operations in a single set-up. This unique design reduces tool changes, shortens cycle time and maximizes uptime. 5