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3/8 Inch Drive 3 Inch Locking Extension - Milwaukee Electric Tools

Part #: 43-24-9303

The Milwaukee 43-24-9303 3/8 Inch Drive 3 Inch Locking Extension is engineered for professional technicians and mechanics who require dependable reach and secure connections in demanding environments. This extension is designed to provide superior control and prevent accidental disengagement, ensuring efficiency and safety in your workspace. Its robust construction makes it a reliable addition to any professional automotive or industrial toolkit.

Key Features

  • Enhanced Tool Security: Features a knurled locking collar and a secure detent hole, ensuring a firm attachment between the extension, ratchet, and socket to prevent detachment during high-torque applications.
  • Precision Control: Equipped with the largest knurling surface on the shaft, providing an exceptional grip for precise adjustments and greater control, even in oily conditions.
  • Durable Corrosion Resistance: Chrome-plated finish offers superior corrosion and rust protection, extending the tool's lifespan in harsh shop environments.
  • Hand-Tightening Grip: The female end includes additional knurling, aiding in hand-tightening applications for initial fastener engagement or in sensitive areas.
  • Clear Identification: Easy-to-read size identification ensures quick selection and efficient organization of your tools.
  • Lifetime Guarantee: Backed by Milwaukee's commitment to quality, offering a lifetime guarantee for lasting performance.

Applications

This 3-inch locking extension is an essential tool for automotive technicians working on engine bays, transmissions, or suspension systems where confined spaces require additional reach without compromising security. It is also well-suited for industrial maintenance professionals needing to access fasteners in machinery, equipment, or manufacturing lines. Its secure locking mechanism makes it ideal for preventing dropped sockets when working overhead or in hard-to-reach areas on various vehicles and industrial equipment.

Specifications

  • Drive Size: 3/8 Inch
  • Length: 3 Inches
  • Finish: Corrosion-Resistant Chrome Plated
Only 2 left in stock - order soon
List: $26.49 Save: $5.46

$21.03

Free shipping on orders over $250
Lower 48 states and DC. Excludes freight and oversize items.
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This product was added to our catalog on Wednesday 13 May, 2026.

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