77 Piece Socket and Bit Set
Sockets will follow one of two size conventions. SAE is commonly referred to as Standard or Imperial Standard and measurements are in fractions of an inch. Metric is the convention preferred by most countries and metric parts can be found on everything from engine bolts to home gyms. Metric sockets are measured in millimeters.
|Unit of Measure||Both SAE and Metric|
|Drive Size||1/4-in, 3/8-in|
There are two basic types of Socket wrenches. Ratchets are traditionally thought of as socket wrenches and are used for tightening and loosening fasteners. Torque wrenches are designed to tighten bolts/nuts to a specific tightness. This tightness or torque is measured foot (or in some cases inch) pounds.
|Socket Wrench Type||Ratchet|
|Mfr Part #|
|Category||Sockets & Ratchets - 2057|