Features: 1.The torque of the socket wrench set is 50% higher than that of carbon steel. Save a lot of energy and time. 2.This 1/2 inch DR socket wrench set has a total of 32 pieces and can be used for different sizes of nuts and bolts. 3.This kit is very convenient to use when the size of the nut and bolt is large, or the working position of the wrench is very narrow. 4.Fully polished, two?color surface treatment(mirror + matte), excellent wear resistance and rust resistance. 5.The bit adopts cr?v material, which has strong hardness and higher toughness. Made of chromium vanadium steel (50BV30) cold extruded and heat treated as a whole, durable and sturdy. Specification: Conditon: Item Type: Ratchet Handles Socket Set Material: Chromium Vanadium Steel Color: As Pictures Shown Application: Suitable for automobile repair, mechanical maintenance, etc. Package Included: 19pcs - 1/2in DR.Sockets (6PT) : 8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,24,27,30,32mm (8mm/0.31in, 9mm/0.35in, 10mm/0.39in, 11mm/0.43in, 12mm/0.47in, 13mm/0.51in, 14mm/0.55in, 15mm/0.59in, 16mm/0.63in, 17mm/0.67in, 18mm/0.71in, 19mm/0.75in, 20mm/0.79in, 21mm/0.83in, 22mm/0.87in, 24mm/0.94in, 27mm/1.06in, 30mm/1.18in, 32mm/1.26in) 6pcs - 1/2in DR.Sockets (12PT) : 10,12,14,15,17,19mm (10mm/0.39in, 12mm/0.47in, 14mm/0.55in, 15mm/0.59in, 17mm/0.67in, 19mm/0.75in) 2pcs - 1/2in DR.Spark Plug Sockets : 16mm/0.63in & 21mm/0.83in 2pcs - 1/2in DR.Extension Bar : 5in & 10in 1pcs - 1/2in DR.Universal Joint 1pcs - 1/2in DR.Ratchet Handle 1pcs - 3 Way Adaptory Adaptor PackageList: 1 x Ratchet Wrench Socket Kit(Total 32 Pcs)