This is a 5/56" Replacement Tip for the DuraTrax Ultimate Hex Driver, DTXR0390 FEATURES: Precision ground, replaceable tip Durable metal construction Fits DuraTrax Ultimate Hex driver INCLUDES: One 5/56" Replacement Tip REQUIRES: Inserting into handle SPECS: Total Length: 2.48" (62.98mm) cmb 4/19/04 ir/jxs