Makita 2450 Rotary hammer Chuck SDS Rebuild repair kit

Makita 2450 Rotary hammer small barrel SDS-Plus locking chuck repair kit, compatible with Makita HR 2450, HR2470, Soma SM-2022 hammer drill. Sspring height 18, internal diameters of the casing (anther) 31 and 40, diameters of the rings 23 and 32 mm, internal diameter of the retaining ring 19 mm