
Top Notch GROOVING & THREADING INSERTS Insert Style Application Rake Angle Page(s) Insert Style Application Rake Angle Page(s) NG NFD-KI • Internal deep face grooving • General-purpose grooving. with chip control. 10° TURNING • O-ring grooving. Neutral 8 Positive 16 • For use in boring bars for • Circlip grooving. internal face grooves. NG-K NP-K NPD-K • Chip control geometry. • General-purpose grooving. • Turning. • O-ring grooving. 10° 10 • Back turning positive. 10° 17 Positive Positive • Circlip grooving. • Profiling with chip control. • Light turning. NGC-K NR • Combined groove and chamfered edge break in one positive plunge with chip control. 10° 18 • Full radius grooving. Positive Neutral 13 • Designed for DIN 471/472 • Turning and profiling. standard circlip grooves. NGD NR-K • Deep grooving. Neutral 12 • Chip control geometry. • Full radius grooving, turning, 10° 14 Positive and profiling. NGD-K • Chip control geometry. NRD • Deep grooving. 10° 12 Positive • Light turning. • Deep grooving. Neutral 14 • Full radius end-form. NGP • General-purpose grooving. NRP • O-ring grooving. 5° 9 Positive • Circlip grooving. • Full radius grooving. 5° 13 • Light-turning profiling. Positive NF • Face grooving. NU Neutral 15 • Additional side clearance. • Undercutting. Neutral 17 NF-K • Face grooving with chip control. 10° NV Positive 15 • Additional side clearance. • Poly-Vee grooving. Neutral 18 NFD-K • Deep face grooving with chip control. 10° 16 Positive • Additional side clearance. kennametal.com 7