Gray Tools
Gray Tools 163B-I 9/16" 12 Point 1000V Insulated Wrench
A 9/16-inch, 12-point combination wrench insulated to 1000 V with dual-colour safety layers, tested to ASTM F1505
- 1000 V insulated protection for live electrical work
- Dual-layer orange and yellow insulation shows wear at a glance
- 12-point drive engages fasteners from multiple angles
- Tested to ASTM F1505 standard for verified safety
- 9/16 inch hex fits common automotive and industrial bolts
Insulated Combination Wrench 9/16
This 9/16 inch combination wrench is insulated for live electrical work up to 1000 V. It suits electricians, maintenance technicians and industrial crews who must tighten or loosen fasteners on energised equipment. The 12 point drive engages hex heads from multiple angles in confined spaces.
Dual Layer Insulation Visual Check
An orange outer insulation layer covers a yellow inner layer that acts as a wear indicator; if yellow shows through the orange the tool must be replaced. Each wrench is individually tested to ASTM F1505 standards. The insulated coating adds grip while maintaining the slim profile needed for tight panel access.
Voltage Rating And Size Limits
The 1000 V rating applies only while the insulation remains intact and the tool is used within its specified voltage class. It does not protect against currents beyond that rating or against mechanical damage to the coating. The fixed 9/16 inch opening means a separate wrench is required for every other fastener size.
Highlights
- 1000 V insulated protection for live electrical work
- Dual-layer orange and yellow insulation shows wear at a glance
- 12-point drive engages fasteners from multiple angles
- Tested to ASTM F1505 standard for verified safety
- 9/16 inch hex fits common automotive and industrial bolts
Specifications
| Brand | GRAY TOOLS |
|---|
Questions about this item
What ASTM standard does the 163B-I insulated wrench meet?
The wrench is individually insulated and tested to ASTM F1505, the standard specification for insulated and insulating hand tools rated up to 1000 V.
What clearance does the 12-point, 9/16-inch head need on a fastener?
The 12-point box end engages a 9/16-inch hex fastener from multiple angles, requiring only enough swing room for the offset handle to rotate.
How do I verify the insulation is still safe before each use?
Inspect both layers: the outer orange layer and the inner yellow layer; if the yellow layer is visible through cuts or wear, remove the wrench from service immediately.
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