Gray Tools
Gray Tools MT12-I 12mm 3/8" 12pt 1000V insulated socket
12 mm 3/8" drive 12-point insulated socket tested to ASTM F1505 for 1000 V protection with dual-layer orange and yellow safety indication
- 12 mm 12-point socket fits common fasteners
- Dual orange-over-yellow insulation shows damage at a glance
- Rated for 1000 V live-line work
- Tested to ASTM F1505 for verified protection
- California Proposition 65 chemical warning applies
Gray Tools 12mm 3/8" 12pt 1000V Socket
This Gray Tools MT12-I socket fits 12mm hex fasteners with a 3/8 inch drive and twelve-point geometry. The insulated body carries two colour-coded layers; an orange outer layer covers a yellow inner layer that acts as a visual wear indicator. Each piece is individually tested to ASTM F1505 for protection up to 1000 volts. It is intended for professional technicians working on live or de-energised electrical equipment.
Electrical maintenance
The socket suits electricians, high-voltage maintenance crews and hybrid-vehicle specialists who require certified 1000 V hand tools. Buyers needing impact-rated sockets or larger drive sizes should look at alternatives, as this is a standard-length hand-tool socket. The Proposition 65 notice also means the product contains listed chemicals, so users with strict material restrictions must evaluate suitability before purchase.
1000 V ASTM F1505 insulation rating
The decisive specification is the 1000 volt insulation rating verified to ASTM F1505. This certification confirms the socket meets the dielectric requirements for work on energised systems up to that voltage. Without this rating the tool would not be compliant for high-voltage tasks, making the tested insulation the single factor that determines whether the part matches the job.
Highlights
- 12 mm 12-point socket fits common fasteners
- Dual orange-over-yellow insulation shows damage at a glance
- Rated for 1000 V live-line work
- Tested to ASTM F1505 for verified protection
- California Proposition 65 chemical warning applies
Specifications
| Brand | GRAY TOOLS |
|---|
Questions about this item
What drive size ratchet or breaker bar is required to use the 3/8" drive 12 mm insulated socket?
A 3/8 inch drive ratchet, breaker bar or torque wrench is needed; the socket’s square drive fits that size directly.
Can the 12 mm 12-point insulated socket be used on standard 12 mm fasteners without the insulation interfering?
The orange and yellow insulation layers add modest thickness; they clear most 12 mm bolt heads but may be tight in deeply recessed locations.
How can I verify the socket’s 1000 V insulation is still intact before each job?
Inspect the yellow inner layer — if it shows through the orange outer layer, the insulation is compromised and the socket must be replaced.
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