Milwaukee 3/8 Drive Socket Metric Standard-20MM (4932479996)

Description

Genuine Milwaukee · Part no. 4932479996

A 20mm socket in standard length for 3/8in drive, chrome finished with a stamped size. Twenty millimetres is not a size most car owners use every week, which is exactly why basic kits tend to skip it; this single socket is for when you have found a 20mm head and need a proper, snug fit.

Good to know

• Is it the same as a 20.8mm spark plug socket? No. Those plugs need a dedicated plug socket with a holding insert and thin wall; a plain 20mm will not seat on them.
• Can I force a 21mm on a 20mm head instead? It will slip on the corners and round them, and a rounded head is far harder to remove. Use the matching size.
• Is 3/8in drive enough for a 20mm bolt? For moderate tightness, yes. A high-torque fixing of this size needs 1/2in drive and a breaker bar to free it.

Which one?

For a 20mm nut on a long thread, the Milwaukee 3/8 Drive Socket Metric Deep-20MM (4932480001); for spark plugs, the Milwaukee 3/8in Drive 20.8mm Spark Plug Socket -1 Piece (4932480677).

Key features

• 20mm, standard length
• 3/8in square drive
• Chrome finish
• Stamped size
• Anti-roll flats

Specification