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Gray Tools 3170B 12-point combination wrench, black oxide finish

Gray Tools

Gray Tools 3170B 2-3/16" 12-Point Combination Wrench

SKU CH-3VWA-2Y6G8

A 12-point combination wrench with a 2-3/16" hex size, precision broached for a secure fit and corrosion-resistant black oxide finish meeting ANSI standards

  • 12-point broaching grips fasteners securely
  • 2-3/16 inch hex size fits large bolts
  • Black oxide finish resists corrosion
  • ANSI-standard construction ensures reliable performance
  • Gray Tools quality trusted by professionals

2-3/16" Combination Wrench

The Gray Tools 3170B is a 12-point combination wrench sized at 2-3/16 inches. It suits mechanics and technicians who need a single tool for large fasteners in maintenance or assembly work. The black oxide finish provides corrosion resistance for shop environments.

12-Point Drive and ANSI Fit

The 12-point broached opening engages fastener flats at multiple angles for a secure fit in tight access. It meets ANSI dimensional standards for compatibility with corresponding hardware. The precision broaching reduces rounding risk on stubborn or worn bolt heads.

Simple Hand Tool Operation

No installation is required; the wrench is ready for immediate use on compatible hex fasteners. The fixed size means it cannot adjust to other diameters, so users must verify the exact fastener measurement beforehand. California Proposition 65 warnings apply regarding chemical exposure.

How it compares

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

Price $204.99
Pricier than about 90% of the 2,748 comparable items (median $20.99).

Specifications

Product
Brand nameGRAY TOOLS

Questions about this item

Which Gray Tools 3170B size should I choose for a 2-3/16 inch fastener?

This 3170B wrench is sized at 2-3/16 inch and has a 12-point broached opening, so it fits that exact fastener without needing another version.

What does the 12-point drive mean when I use the wrench?

The precision-broached 12-point drive engages the fastener at more angles than a 6-point, giving a tight and secure fit on the 2-3/16 inch hex.

Does the black oxide finish meet a recognised standard?

Yes, the wrench meets ANSI standards and has a corrosion-resistant black oxide finish for durability.

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