Torx / Star Bit Sockets. Manufactured from chrome vanadium steel for strength and durability. 1/4" 3/8" & 1/2" drive so will fit any 1/4" 3/8" & 1/2" drive ratchets / bars / extensions etc... Comes in a blow molded case for easy storage and transportation. Set includes the following sizes: 1/4" sizes T8 / T10 / T15 / T20 / T25 / T27 / T30 Length 38mm 3/8" sizes T40 / T45 / T50 / T55 / T60 Length 50mm 1/2" sizes T70 Length 56mm