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Black oxide ball-end hex key with rubber handle

Greenlee

Greenlee 0254-47 Hex Key 3/16 in 4 23/32 in

SKU CH-KJ64-8RSN5 MPN 0254-47

SAE ball-end hex key in alloy steel with black-oxide finish and rubber grip, 3/16 in tip

  • TypeHex/Torx Keys
  • Color/FinishBlack Oxide
  • Ball-end design allows angled access to fasteners
  • Alloy steel construction delivers high strength and durability
  • Black oxide finish resists corrosion for long service life
  • Rubber handle provides comfortable, non-slip grip
  • SAE 3/16 in tip fits standard hex bolts and nuts

3/16 in SAE Hex Key

The Greenlee 0254-47 is a plain ball-end hex key sized for 3/16 inch SAE fasteners. It is built for technicians and tradespeople who need reliable access to recessed or angled bolts. The alloy steel construction provides the strength required for daily professional use. This tool fits standard toolbox organisation for hex drivers.

Sustained Torque Application

The ball-end design allows engagement at an angle so force can be applied when straight access is blocked. Alloy steel resists rounding under continuous load without the deformation seen in softer materials. The 4 23/32 in long arm supplies leverage for sustained tightening or loosening cycles. The black oxide finish reduces surface friction during repeated insertion and removal.

Corrosion Resistance and Grip

A black oxide coating protects the steel from rust in damp workshop or automotive environments. The rubber handle section improves grip security when hands are oily or wet. The 2 1/4 in handle length gives enough purchase for controlled torque without excessive bulk. California Proposition 65 warnings apply to chemicals present in the product.

Highlights

  • Ball-end design allows angled access to fasteners
  • Alloy steel construction delivers high strength and durability
  • Black oxide finish resists corrosion for long service life
  • Rubber handle provides comfortable, non-slip grip
  • SAE 3/16 in tip fits standard hex bolts and nuts

Specifications

BrandGreenlee
Model0254-47
TypeHex/Torx Keys
Color/FinishBlack Oxide

Questions about this item

Does the 0254-47 hex key generate any noise, heat or vibration during extended use?

No — it is a manual hand tool with no motor, electronics or moving parts, so it runs silently and produces no heat or vibration regardless of how long you work.

What existing tools or fasteners must I already have for this 3/16 in ball-end hex key to be useful?

You need SAE hex bolts or nuts with a 3/16 in drive; the ball end allows angled access, but the fastener must match that exact size.

Will the 4 23/32 in length and ball-end tip work alongside older hex keys I already own?

Yes — the alloy-steel shaft and black-oxide finish are compatible with any standard SAE hex hardware, and the longer reach simply adds leverage without interfering with shorter keys.

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