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Gray Tools 21mm 12-point insulated socket with orange and yellow safety layers

Gray Tools

Gray Tools M1221-I 21mm 12 Point 1000V Insulated Socket

SKU CH-WYZX-BZQBY

A 21 mm, 12-point insulated socket rated for 1000 V with dual-colour safety layers tested to ASTM F1505

  • 12-point drive grips 21mm fasteners securely
  • Insulated to 1000V for live electrical work
  • Dual orange and yellow layers show damage instantly
  • Tested to ASTM F1505 for verified protection
  • 1/2 inch drive fits standard ratchets and bars

21mm 12-Point Insulated Socket

This 21mm socket uses a 12-point drive for secure fastener engagement. It is insulated to protect the user for up to 1000 V during electrical work. Each piece is individually tested to ASTM F1505 standards for verified safety. The tool suits electricians and technicians working on live low-voltage systems.

Dual-Layer Insulation Build

An orange top insulation layer covers a second yellow layer that acts as a visual safety indicator. Damage to the orange layer reveals the yellow beneath, signalling that the socket must be replaced. This construction supports daily use in demanding environments while maintaining the 1000 V protection rating. The standard length fits common 1/2-inch drive tools.

Compatibility Checks Before Buying

Confirm the fastener requires a 21mm 12-point socket and that your drive tools accept standard-length sockets. Verify your work procedures require ASTM F1505 compliance and 1000 V rated insulation. Note the California Proposition 65 warning regarding chemicals known to cause cancer and reproductive harm. Ensure the dual-layer indicator matches your safety inspection protocol.

Highlights

  • 12-point drive grips 21mm fasteners securely
  • Insulated to 1000V for live electrical work
  • Dual orange and yellow layers show damage instantly
  • Tested to ASTM F1505 for verified protection
  • 1/2 inch drive fits standard ratchets and bars

Specifications

BrandGRAY TOOLS

Questions about this item

What drive size and point count does the 21mm 1221-I socket use?

The socket has a 1/2 inch drive and a 12 point configuration.

What insulation layers and voltage rating protect the user on this socket?

An orange outer layer and a yellow inner indicator layer provide protection up to 1000 V.

How is the 1000 V rating verified before the socket ships?

Each socket is individually insulated and tested to ASTM F1505 standards.

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