Walter CNMG160616-RP5 WPP30S Tiger-tec Silver Carbide Turning Insert (4pc)

This is a new Walter CNMG160616-RP5 carbide turning insert in grade WPP30S, part of Walter's Tiger-tec Silver CVD coating platform — a next-generation aluminum oxide (Al2O3) and titanium nitride (TiN) multilayer CVD coating engineered for extended tool life and process reliability in steel and cast iron turning. The CNMG ISO designation specifies an 80° diamond (rhombic) shape, 0° clearance angle (relieved on the toolholder), M-tolerance class, with a four-hole (G) chipbreaker seat; the 160616 size code indicates a 16.5 mm inscribed circle, 6.35 mm thickness, and 1.6 mm nose radius. The RP5 chipbreaker geometry is Walter's medium-roughing to semi-finishing breaker optimized for interrupted and continuous cuts on steel (ISO P) at moderate-to-high feed rates. WPP30S is primarily rated for ISO P (steel) machining with secondary suitability for ISO M (stainless), as confirmed by the two filled P-dots visible on the Walter Select application chart on the packaging. Compatible toolholders use CNMG 19 (1/2 in IC) seating with negative rake geometry; Walter catalog cross-reference lists this insert under item number 6150076 with a box quantity of 4 inserts, made in Germany.

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