3/8” Drive Pneumatic Air Impact Deep Well socket set !! 18pc Heavy Duty Inch/Millimeter Combo Set with Cases.Specs:Drop Forged, Heat Treated Carbon Steel Construction Opti-Drive Socket Design Contacts Only Flat Surfaces of Fastener Head to Eliminate Rounding Off Corners6-Point Socket End with Beveled Nose to Help Guide Socket Onto Fastener Durable Black Oxide Finish Resists Corrosion Hole on Socket Locks on to Drive Tang, Keeps Socket from Slipping Off or Sticking to Fastener Combo Pack Includes:8-pc. 3/8" Dr. SAE: 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/168-pc. 3/8" Dr. MM: 10, 11, 12, 13, 15, 17, 18, 19mmMolded Plastic Case for each set We are an authorized distributor for Michigan Industrial Tools, and please to offer you this set!Warranty: 30 Days Money back or exchange through us, and LIFETIME warranty directly through MIT.Shipping is via USPS priority Mail(1-3 days) to anywhere in the US.