Sockets & Ratchets History
Interchangeable sockets, ratchet mechanisms, drive sizes and the Snap-on era.
Why did socket sets become standard in early auto repair?
Short answer: Socket sets let a technician change sizes quickly with one handle.
Socket sets let a technician change sizes quickly with one handle. They became standard in early auto repair as more vehicles needed regular service.
How did socket size markings evolve?
Short answer: Socket size markings evolved from stamped numbers to large laser-etched markings and color-coded bands.
Socket size markings evolved from stamped numbers to large laser-etched markings and color-coded bands. These improved readability in dim shops.
Why did spline sockets appear?
Short answer: Spline sockets fit multiple fastener types, including hex and 12-point heads.
Spline sockets fit multiple fastener types, including hex and 12-point heads. They appeared as an option for technicians working with varied fasteners.
Why did swivel sockets become common?
Short answer: Swivel sockets have a built-in universal joint.
Swivel sockets have a built-in universal joint. They became common for reaching fasteners at angles in crowded engine bays.
How did ratchet handle designs change?
Short answer: Ratchet handles evolved from bare metal to knurled and later cushioned grips.
Ratchet handles evolved from bare metal to knurled and later cushioned grips. Longer handles and teardrop heads were also introduced for leverage and access.
Why were impact universal joints developed?
Short answer: Standard universal joints could break under impact loads.
Standard universal joints could break under impact loads. Impact universal joints were developed with stronger designs for use with air tools.
General guidance only. Follow the vehicle and tool manufacturer's procedures, and confirm vehicle coverage on the tool maker's list before buying.