Hakenschlüssel

The SKF Hook spanner, size 7, is designed for easy tightening and loosening of lock nuts. They are used to secure and adjust bearings on tapered journals, adapter sleeves and withdrawal sleeves. They fit on a variety of lock nuts with outer diameter(s) 52 - 55 mm. To be more specific for locknuts: KM 7, KMK 7, KMFE 7, KMT 6, KMT 7, N 07 and M28x1,5, M30x1,5, M32x1,5, M35x1,5 (DIN 1804).