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Gray Tools 18 mm 12-point insulated socket with orange and yellow layers

Gray Tools

Gray Tools MT18-I 18mm 3/8" 12pt 1000V insulated tool storage

SKU CH-Q0PM-JX74M

An 18 mm, 12-point, 3/8" drive socket insulated to 1000 V with dual-layer orange and yellow coating tested to ASTM F1505

  • 1000 V rated protection for live circuits
  • Dual-layer orange and yellow insulation shows damage at a glance
  • 12-point 18 mm hex fits fasteners securely
  • Tested to ASTM F1505 for verified insulation performance
  • 3/8-inch drive compatible with standard ratchets

Insulated 18 mm 12-point socket

The Gray Tools MT18-I is an 18 mm, 3/8-inch drive socket with a 12-point opening. It carries an orange top insulation layer and a yellow inner layer that acts as a visual safety indicator. The tool is individually insulated and tested to ASTM F1505 standards for up to 1000 V protection. It suits electricians and technicians working on live low-voltage equipment.

ASTM F1505 1000 V limit

The insulation is rated for 1000 V and verified to ASTM F1505, so it covers many industrial and automotive hybrid systems. It does not extend to higher-voltage utility work or applications beyond the tested standard. The yellow indicator layer reveals damage but cannot prevent failure if the tool is used past its rated voltage. Buyers needing higher dielectric ratings must select different equipment.

18 mm hex size fit

The single specification that decides fit is the 18 mm hex opening combined with a 12-point drive geometry. This matches fasteners of that exact size and drive profile only. Metric or imperial fasteners of any other dimension will not engage correctly. Confirm the fastener size before purchase because no adapter or alternate sizing is included.

Highlights

  • 1000 V rated protection for live circuits
  • Dual-layer orange and yellow insulation shows damage at a glance
  • 12-point 18 mm hex fits fasteners securely
  • Tested to ASTM F1505 for verified insulation performance
  • 3/8-inch drive compatible with standard ratchets

Specifications

BrandGRAY TOOLS

Questions about this item

Which drive size and point count match the 18 mm hex on this socket?

The socket has a 3/8 inch drive and a 12 point profile for the 18 mm hex.

What does the 1000 V rating mean when the socket is on a ratchet?

It certifies protection up to 1000 volts when the orange and yellow insulation layers are intact.

Which standard governs the insulation test and what voltage does it cover?

ASTM F1505 testing confirms the insulation withstands 1000 V.

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