The OX Spectrum Trade XL 3 Core & Accessories Case, your complete solution for dry core drilling. Featuring turbo segments for enhanced cutting speed and a spiral design to draw dust away, it prolongs the life of the diamond tip. 1 x 1/2″ BSP Hex Core Adaptor (Fits into 13mm 1/2″ chucks). 1 x 1/2 BSP SDS+ (SDS-Plus) Core Adaptor. 1 x 250mm 1/2 BSP Male/Female extension rod for cutting through cavities etc.