A comprehensive collection of 1/4 in. drive tools, this set has every size from 5/32 in. to 9/16 in. and 4 mm to 14 mm, in both shallow and deep lengths and includes a universal joint, screwdriver bit adapter and 3/6 in. extension, tools not found in most other sets. Widely used in scenes such as cars, bicycles, industrial and mining enterprises, all kinds of automobile maintenance, school teaching, etc. Suitable for various scenarios, cars, bicycles, all kinds of mechanical maintenance, 1/4 in. Drive Ratchet Wrench Socket Set would hold up to harsh daily use, You will get value from higher quality equipment. Mechanics Tool Kit, for Auto Repairing and Household.