1/4" + 3/8" + 1/2" Dr. Impact extension set 18pcs

Made from Heavy-duty Chrome-Vanadium steel alloy with a corrosion-resistant black phosphate finish, providing the durability for a hard use This set includes: 2 pcs. 1/4" extension bar: 75, 150 mm 3 pcs. 3/8" extension bar: 75, 150, 250 mm 3 pcs. 1/2" extension bar: 75, 150, 250 mm 1 pc. 1/4" Adapter F - 1/4" M - 3/8" 1 pc. 3/8" Adapter F - 3/8" M - 1/4" 1 pc. 3/8" Adapter F - 3/8" M - 1/2" 1 pc. 1/2" Adapter F - 1/2" M - 3/8" 3 pcs. Universal swivel joint: 1/4", 3/8", 1/2" 1 pc. 1/4" Hex x 1/4" Socket 1 pc. 1/4" Hex x 3/8" Socket 1 pc. 5/16" Hex x 1/2" Socket