SDS-Plus Rotary Hammer Chuck Kit

This is a replacement chuck assembly for DeWalt SDS-Plus rotary hammers, identified by part numbers N403111 / 496244-00 and N591846 / 584558-00. Compatible with D25114K-AR (Type 2), D25124K-AR (Type 1), D25304/D25314/D25324K/D25334K (all Types 1 & 2), and D25414KT (Type 1) models. Made from plastic, it forms the core bit-holding interface of the tool — engaging the SDS-Plus shank via three sprung jaws and axial locking action. No dimensions, weight, or capacity figures are supplied. Intended for installation by qualified personnel familiar with rotary hammer disassembly procedures. Suitable for indoor and outdoor use in UK weather conditions when installed correctly.