This 41-piece all purpose 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 Heat treated. Corrosion resistant chrome finish. Convenient storage case. Tools should last a lifetime under normal home use The compact set comes in a sturdy carry case. 1/4" and 3/8" drive ratchets and sockets included Item special kinds of bit plug which can be fixed in a drill machine as well for the purpose of screwing and unscrewing Package included: 1 plastic case, 3 phillips bit: no 1, 2, 3, 1 extension bar, 1 three way reversible ratchet driver, 1 bit adapter. Durable . Light weight Read Less