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Gray Tools

Gray Tools MC73B Combination Wrench 73mm 12 Point Black Oxide

SKU CH-ZC6B-3T64Y

A 73 mm, 12 point combination wrench with a corrosion resistant black oxide finish that meets ANSI standards

  • 73 mm opening fits large fasteners
  • 12-point broaching grips securely from multiple angles
  • Black oxide coating resists corrosion during use
  • ANSI-compliant construction ensures reliable performance
  • New condition ready for immediate workshop deployment

73 mm 12-Point Combination Wrench

The Gray Tools MC73B is a single-piece combination wrench sized at 73 mm with a 12-point box end. Precision broaching on the box end provides a tight, secure fit on fastener flats. A black oxide coating resists corrosion during storage and daily use. The tool meets ANSI dimensional standards for professional work.

Technicians needing a large 73 mm spanner

This wrench suits mechanics and maintenance crews who regularly service heavy equipment, agricultural machinery or industrial flanges requiring a 73 mm fastener. It is not for technicians who mainly work on passenger vehicles or light commercial fleets where smaller sizes dominate. Buyers needing a full range of metric sizes should look at a complete set rather than a single piece. The offset handle offers standard leverage for the size.

73 mm hex opening with 12-point broaching

The defining specification is the 73 mm hex opening combined with a 12-point broached box end. This geometry determines exactly which bolts and nuts the wrench will engage and how securely it grips them. Verify that the fastener across-flats measurement matches 73 mm before purchasing. No other size or drive configuration is covered by this model.

Highlights

  • 73 mm opening fits large fasteners
  • 12-point broaching grips securely from multiple angles
  • Black oxide coating resists corrosion during use
  • ANSI-compliant construction ensures reliable performance
  • New condition ready for immediate workshop deployment

Specifications

BrandGRAY TOOLS

Questions about this item

Will the 73mm 12-point opening fit the same fasteners as my older 73mm 6-point wrenches?

Yes, the 12-point broaching engages the same 73mm hex fasteners while offering twice as many engagement angles for tighter swing arcs.

How can I confirm the black oxide finish is protecting the wrench from corrosion after first use?

The surface should remain uniformly dark with no reddish spotting after exposure to moisture; ANSI‑compliant black oxide resists rust under normal shop conditions.

Does the box include any sockets or adapters, or is it only the single combination wrench?

Only the 73mm 12-point combination wrench with black oxide finish is supplied; no sockets, adapters or storage tray are included.

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