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TEKTON 1/2 inch drive 21 mm deep 12-point impact socket

TEKTON

TEKTON SID23321 1/2 Inch Drive 21 mm Deep 12-Point Impact Socket tool storage

SKU CH-0F2C-JNEP8

1/2 inch drive 21 mm deep 12-point impact socket with permanent markings and 1.3 times ANSI proof torque standard

  • High-visibility laser marking and permanent stamped marking prevent wear
  • 12-point deep design fits 1/2 inch drive tools securely
  • Meets 1.3 times ANSI/ASME proof torque standard for durability
  • Compatible with both friction ring and detent pin anvils
  • TEKTON brand quality for reliable impact socket performance

TEKTON 1/2 Inch Drive Impact Socket

This TEKTON impact socket features a 1/2 inch drive and 21 mm size for heavy-duty fastening tasks. The 12-point design engages fasteners from multiple angles. High-visibility laser marking and permanent stamped markings ensure size identification remains clear over time.

Proof Torque Rating and Compatibility

Each socket meets a minimum of 1.3 times the ANSI/ASME standard for proof torque, providing confidence under high-load impact use. It is designed for both friction ring anvils and detent pin anvils. The deep well reaches recessed fasteners that standard sockets cannot access.

Garage Storage Integration

This individual socket adds a specific 21 mm deep option to your existing tool storage system. It requires a compatible 1/2 inch drive impact wrench or breaker bar for operation. The durable markings reduce time spent searching for the correct size during automotive or industrial work.

How it compares

Measured against everything we stock in Tool Bags & Storage Cases, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 91% of the 2,748 comparable items (median $20.99).

Specifications

Product
Brand nameTEKTON

Questions about this item

Will the 1/2 inch drive on this 21 mm socket fit the impact wrench I already own?

The socket uses a standard 1/2 inch drive, which matches most common impact wrenches and works with both friction ring and detent pin anvils.

How can I confirm the 12-point socket is seating correctly on a stubborn fastener?

The deep 12-point design engages flats at multiple angles, and the permanent stamped marking lets you verify the 21 mm size even after heavy use.

Does the SID23321 come with any extra accessories or just the single socket?

The listing describes one 1/2 inch drive 21 mm deep 12-point impact socket; no additional pieces or storage case are included.

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