15 PACK STAR BITS WITH SOCKET 10 mm hex shank. 3/8 inch drive adapter. Chrome vanadium steel for strength and durability. Heat treated and tempered. 15 piece set includes: one of each of the following sizes: ST10, ST15, ST25, ST27, ST40, ST45, ST47, ST50, ST55, & ST60; Two of each of the following sizes: ST20 & ST30, one 3/8 inch drive adapter.
