HN 4

The SKF open-end spanner, size 4, is designed for easy tightening and loosening of lock nuts. They are used to secure and adjust bearings on tapered journals, clamping sleeves and withdrawal sleeves. They are suitable for various lock nuts with an outside diameter of 30-32 mm. More precisely, for lock nuts: KM 4, KMK 4, KMFE 4, KMT 1, KMT 2, N 04 and M14x1.5, M16x1.5 (DIN 1804).