Simpson ADSP2PL Spline to SDS Plus Drill Bit Shank Adaptor BA JB LB Top Flange Joist Hangers Their engineered pre bent design allows Their engineered pre bent design allows for efficient load transfer between framing members while reducing labor associated with modifying standard straps on the jobsite With multiple sizes and lengths available This adaptor maximizes drill bit versatility without the need for multiple rotohammers and it pairs with various types of rotohammers The Simpson Strong Tie® ADSP2PL drill bit shank adaptor is designed to allow larger rotohammers to use smaller Spline bits and SDS Plus bits