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3/8 inch drive 8 mm universal impact socket with manganese phosphate coating

Capri Tools

Capri Tools 5-3308 3/8 in Drive 8 mm Universal Impact Hand Socket

SKU CH-6QQ9-7BD10

3/8-inch drive 8 mm universal impact socket rotates 360 degrees for hard-to-reach fasteners and meets ASME B 107.110 standards

  • Product colorTransparent
  • 360° rotation reaches fasteners in tight spaces
  • 6-point WaveDrive grips tightly and prevents rounding
  • Chrome Molybdenum steel with proprietary heat treatment handles high torque
  • Manganese phosphate coating resists corrosion better than black oxide
  • Meets ASME B107.110 standards for impact socket performance

Capri Tools 3/8 in Drive Universal Impact Socket

The Capri Tools 5-3308 is an 8 mm universal impact socket designed for 3/8 in drive power tools. It targets mechanics and DIY users who need to reach fasteners at awkward angles. The 360 degree swivel joint provides full rotational access in tight engine bays or suspension areas. Premium Chrome Molybdenum steel with proprietary heat treatment ensures the socket withstands repeated high torque impacts.

Manganese phosphate coating

Each socket receives a manganese phosphate coating preferred in military and aerospace applications for superior corrosion resistance compared to standard black oxide. The 6 point WaveDrive profile grips fastener flats more securely than conventional designs, reducing rounding during sustained impact cycles. This combination maintains dimensional accuracy and surface protection even when the tool absorbs continuous high torque from pneumatic or cordless impact wrenches.

Replaces fixed impact sockets where access is

This universal joint socket replaces standard fixed 3/8 in drive 8 mm impact sockets when fasteners sit at angles that prevent straight engagement. The upgrade is worth it whenever a fixed socket cannot seat fully or requires multiple extensions and adaptors that add length. It meets ASME B 107.110 standards, confirming suitability for professional impact use. Buyers who never encounter angled fasteners will not benefit from the swivel mechanism.

How it compares

Measured against everything we stock in Ratchets, Sockets & Drive Tools, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 77% of the 418 comparable items (median $20.99).

Specifications

Product
Brand nameCAPRI TOOLS
Product colorTransparent

Questions about this item

How much heat or vibration does the 3/8 in drive 8 mm universal impact socket generate during continuous power-tool use?

The socket is made from premium Chrome Molybdenum steel with proprietary heat treatment and a manganese phosphate coating designed to withstand high torque from power tools without rounding fasteners.

What drive tools do I already need to operate this 3/8 in drive 8 mm universal impact socket?

You need a 3/8 inch drive impact wrench or ratchet; the socket rotates 360 degrees for access to fasteners at various angles.

Will this 8 mm universal impact socket fit older 3/8 in drive ratchets and impact guns I already own?

Yes, it meets ASME B107.110 standards for 3/8 inch drive sockets, so it works with existing compliant drive tools.

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