Apollo Tools DT1017 41 Piece Socket Set is perfect for any job large or small. The tools are heat treated carbon steel for strength and durability and chrome plated finish to resist corrosion. It comes in a heavy duty blow molded case to securely holds tools in organized spaces. Contains: 1/4" Drive Bit Coupler; 3/8" Drive Ratchet Handle; 3/8" Drive; 3" Extension Bar; Ten 1/4" Drive Metric Sockets: 4mm 4.5mm 5mm 5.5mm 6mm 7mm 8mm 9mm 10mm 11mm; Eleven 1/4" Drive SAE Sockets: 1/2" 1/4" 11/32" 13/32" 3/16" 3/8" 5/16" 5/32" 7/16" 7/32" 9/32"; Three 3/8" Drive Metric Sockets: 12mm 13mm 14mm; 3/8" Drive 1/4" Driver Adapter; Twelve Chrome Vanadium Bits: Slotted 1/8" 5/32" 3/16" 1/4" PH1 PH2 PH3 PZ0 PZ1 PZ2 PZ3 1/4" Adapter; Bit Driver.