We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
1-inch drive 6-point socket, black phosphate finish

Dynamic

Dynamic D025389 1" Drive 6-Point Socket 3-1/8" Black Phosphate

SKU CH-V79F-EJHK8

A 1-inch drive, six-point socket with a corrosion-resistant black phosphate finish and laser-etched size markings for clear identification

  • 1" drive handles high-torque applications
  • 6-point design grips fastener flats securely
  • Black phosphate finish resists corrosion
  • Laser-etched markings simplify size identification
  • Meets ANSI standards for reliability

1" Drive 6-Point Socket 3-1/8

This 1" drive socket fits 3-1/8" fasteners with a six-point opening. A black phosphate coating resists corrosion during heavy automotive and industrial work. Large laser-etched markings simplify size identification on the job site. The tool meets ANSI standards for dimensional accuracy and strength.

Suits heavy-duty maintenance and assembly

Mechanics and technicians turning large bolts with a 1" drive ratchet or impact gun will find the six-point grip secure. Users who need a different drive size, a different opening profile or a smaller socket for confined spaces should choose another tool.

6-point 3-1/8" opening on 1" drive

The six-point 3-1/8" opening on a 1" square drive is the single specification that determines whether this socket matches the fastener and the drive tool you are using. Verify both dimensions before purchase.

Highlights

  • 1" drive handles high-torque applications
  • 6-point design grips fastener flats securely
  • Black phosphate finish resists corrosion
  • Laser-etched markings simplify size identification
  • Meets ANSI standards for reliability

Specifications

BrandDYNAMIC

Questions about this item

Does the Dynamic D025389 socket come with any accessories or do I need to buy a 1" drive ratchet separately?

The package contains only the single 6-point socket with a black phosphate finish. A compatible 1" drive ratchet or breaker bar must be purchased separately.

How do I know the Dynamic D025389 3-1/8" socket is the right size for my fastener?

The socket is a single 3-1/8" SAE size with large laser-etched markings for clear identification. Choose it only when the bolt or nut measures exactly 3-1/8 inches.

What does the ANSI-standard 6-point design mean when I put this socket on a stubborn bolt?

The 6-point geometry contacts the flat sides of the fastener rather than the corners, reducing rounding risk and allowing higher torque on a 3-1/8" bolt head.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.