General Tools & Instruments 147 6 In. Digital Fractional Caliper
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Nickel aluminium bronze impact socket with 3/4 in drive and 6-point SAE fit, meeting ASTM A342 and FM approval
The Ampco I-3/4D1-1/2 is a 3/4 inch drive impact socket sized at 1 1/2 inches with a 6-point configuration. It is built from nickel aluminum bronze and meets ASTM A342 and FM Approved standards. The unfinished standard socket is impact rated for demanding fastening tasks. Mechanics and industrial technicians use it for heavy-duty bolting work.
The nickel aluminum bronze construction resists deformation under repeated high-torque impacts. The 6-point geometry distributes force evenly across fastener flats, reducing rounding during extended use. FM Approved rating confirms compliance with rigorous safety testing for hazardous environments. The unfinished surface maintains consistent grip without coating wear over time.
This socket replaces worn or non-impact-rated 3/4 inch drive sockets in 1 1/2 inch sizes. The jump is worth it when standard chrome sockets fail under impact loads or when spark-resistant tooling is required for flammable atmospheres. It addresses the need for certified safety compliance where ordinary sockets lack ASTM A342 or FM approval.
Measured against everything we stock in Ratchets, Sockets & Drive Tools, at today’s prices. Recalculated every night.
| Product | |
|---|---|
| Brand name | AMPCO |
| Product type | Sockets |
As a hand tool it generates no heat or noise of its own; only the driving impact wrench contributes sound and warmth.
You need a 3/4 inch drive impact wrench or ratchet that accepts standard SAE impact sockets.
Yes, it is an SAE standard socket built to ASTM A342 and FM Approved, so it matches legacy SAE hardware.
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