Replaces Kenwood needles: N-52. Used in cartridges: V-52, AT3400. Used in phonograph models: KD55F, KDSRM9,Spectrum Series, KD41, KD42. Diamond Tip. Speeds: 33 & 45 RPM. Tip Radius: .0007. Made in Switzerland. Tracking Force: 2 to 4 grams.