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Steelman 79377 black phosphate impact extension bar 3/4 inch drive

Steelman

Steelman 79377 3/4" Drive 8" Impact Extension Bar

SKU CH-6V73-8VH56

An 8-inch impact extension bar with a 3/4-inch drive for reaching recessed fasteners on heavy-duty equipment

  • Extra reach for recessed fasteners with 8-inch length
  • Forged chromoly steel withstands heavy-duty use
  • Black phosphate coating resists rust and corrosion
  • Spring-loaded detent ball secures sockets firmly
  • Compatible with 3/4-inch drive ratchets and sockets

Professional Reach Extension

The STEELMAN 79377 is a 3/4-inch drive impact extension bar built for heavy-duty maintenance on large trucks, trailers, farming equipment and construction machinery. It provides 8 inches of extra reach for recessed or hard-to-access fasteners. Forged from resilient chromoly steel, it is designed to endure a lifetime of professional use.

Sustained Durability

A rust and corrosion resistant black phosphate protective coating shields the tool during prolonged exposure to harsh workshop environments. The chromoly steel construction resists deformation under continuous high-torque impact loads. A spring-loaded detent ball on the male end secures attached sockets firmly, while a ball detent recess on the female end maintains a stable connection to the drive tool.

Critical Compatibility

This extension bar is made exclusively for 3/4-inch drive ratchets, torque wrenches, adapters and sockets. It will not function with smaller 1/2-inch or 3/8-inch drive systems commonly found in light automotive toolkits. Buyers needing a different drive size or a longer reach must select an alternative part.

How it compares

Measured against everything we stock in Tool Bags & Storage Cases, at today’s prices. Recalculated every night.

Price $22.99
Typical for this category: the median of 2,748 items is $20.99.

Specifications

Product
Brand nameSTEELMAN

Questions about this item

Does the 79377 extension bar generate noticeable heat or noise during all-day use on heavy equipment?

No, the chromoly steel bar has no moving parts or motor, so it produces no heat or noise regardless of how long it is used.

What drive-size ratchet or torque wrench must I already own for the 79377 to work?

You need a 3/4-inch drive ratchet, torque wrench or adapter; the extension’s female end is a 3/4-inch drive socket.

Will the 79377 fit the older 3/4-inch drive sockets and adapters I already keep in my shop?

Yes, the spring-loaded detent ball and ball-detent recess are standard 3/4-inch drive features that secure any compatible socket or adapter.

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