Gray Tools
Gray Tools MC43B Combination Wrench 43mm 12 Point Black Oxide tool storage
A 43 mm, 12-point combination wrench with a corrosion-resistant black oxide finish that meets ANSI standards
- 43 mm hex fits large fasteners
- 12-point drive grips securely with precision broaching
- Black oxide finish resists corrosion
- Meets ANSI standards for reliable performance
- California Prop 65 chemical warning applies
43 mm 12-Point Combination Wrench
The Gray Tools MC43B is a single-piece combination wrench sized at 43 mm with a 12-point box end. It is built for mechanics and technicians who need to turn large fasteners in automotive, industrial or heavy-equipment maintenance. The black oxide coating adds corrosion resistance for workshop environments.
Open End and Box End in One Tool
The wrench combines an open end and a 12-point box end on the same 43 mm hex size, so one tool covers both access styles. Precision broaching on the box end gives a tight, secure fit on bolt heads and nuts. This reduces the number of separate wrenches a user must carry for the same fastener size.
Black Oxide Finish Meets ANSI Standards
The corrosion-resistant black oxide surface protects the steel during daily use and exposure to shop fluids. The wrench meets ANSI dimensional and performance standards for hand tools. California Proposition 65 warnings apply because the product contains chemicals known to the state to cause cancer and reproductive harm.
Highlights
- 43 mm hex fits large fasteners
- 12-point drive grips securely with precision broaching
- Black oxide finish resists corrosion
- Meets ANSI standards for reliable performance
- California Prop 65 chemical warning applies
Specifications
| Brand | GRAY TOOLS |
|---|
Questions about this item
Will the 12-point broaching on the 43mm wrench hold up to daily high-torque use without rounding?
The precision-broached 12-point profile is engineered for a tight, secure fit that resists rounding under heavy, repeated loading.
Does the black-oxide finish stay cool and corrosion-free when the wrench sits in a hot toolbox all day?
The corrosion-resistant black-oxide coating protects the steel from moisture and heat, so the surface remains intact during long storage periods.
What drive tools do I need to turn this 43mm combination wrench?
No separate drive tools are required; the wrench has an integrated 12-point box end and open end sized for 43mm fasteners.
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