Description
US PRO Tools 3-Piece Impact Universal Wobble Joint Set (Model 3977)
Product Overview
The US PRO Tools (Model 3977) is a 3-piece impact universal wobble joint set engineered to provide flexible angles and enhanced access when working with sockets in restricted spaces. Covering 1/4″, 3/8″, and 1/2″ square drives, these swivel adaptors allow your ratchets and impact guns to transmit torque around corners and obstacles without binding.
Key Features & Specifications
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3-Drive Versatility: Includes three distinct drive sizes—1/4″, 3/8″, and 1/2″—to cover light trim work up to heavy structural fastening.
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Wobble & Swivel Action: Offers flexible movement to approach off-angle bolts and nuts smoothly in tight engine bays or chassis tunnels.
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Impact-Grade Cr-Mo Steel: Forged from heavy-duty chrome-molybdenum steel, hardened and heat-treated to endure the intense shock and torque of pneumatic impact tools.
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Corrosion-Resistant Finish: Treated with a durable protective coating to resist workshop oils, grease, and moisture.
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Secure Ball Detent: Features spring-loaded ball bearings to lock extension bars and sockets firmly in place during operation.
Core Workshop & Automotive Applications
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Obstacle Clearance: Reaching fasteners hidden behind exhaust pipes, crossmembers, wiring harnesses, and bracket assemblies.
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Off-Angle Fastening: Driving sockets at awkward angles where a straight extension or direct socket access is impossible.
What’s in the Box
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1x 1/4″ Drive Impact Universal Wobble Joint
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1x 3/8″ Drive Impact Universal Wobble Joint
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1x 1/2″ Drive Impact Universal Wobble Joint
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Storage Holder / Rail









