Features and Benefits:

• Chrome molybdenum alloy steel for long life
• Designed with radius corners, this allows it to grab the sturdy wall of the fastener instead of grabbing the corners
• Industrial strength, double latch blow mold case
• Following sizes are included: 1 in., 1-1/8 in., 1-1/4 in., 1-3/8 in., 1-1/2 in., 1-5/8 in., 1-3/4 in., 1-7/8 in. and 2 in.

This is a jumbo impact socket set. It is 9 pieces. It is 1 in. drive.