Apex 81200D Extension Set 3/8 Inch Drive 4 Piece

Product Description

The APEX 81200D is a four-piece 3/8 inch drive extension set designed for use in automotive and mechanical service applications. The set includes four extensions measuring 1.5 inches, 3 inches, 6 inches, and 12 inches in length, providing a range of reach options for socket work in confined or open spaces. At 1.32 pounds total, the set is lightweight enough for continuous overhead or under-dash work. Licensed technicians and professional mechanics reach for this set when standard-length extensions cannot clear obstructions around fasteners.

This extension set is suited for automotive service, light truck repair, and general mechanical maintenance where 3/8 inch drive tooling is the standard. The four included lengths cover the most common depth requirements encountered in engine bay work, suspension service, and interior fastener access. The set is appropriate for both shop-floor professionals and experienced DIY technicians who work regularly with 3/8 inch drive ratchets and breaker bars.

Key Features

• Four-piece set covers 1.5 inch, 3 inch, 6 inch, and 12 inch extension lengths
• 3/8 inch drive sizing compatible with standard 3/8 inch drive ratchets and sockets
• Lightweight construction at 1.32 pounds for the full set
• Designed for everyday professional use across automotive and mechanical service

Compatibility

Designed as a standard 3/8 inch drive extension set compatible with 3/8 inch drive ratchets, breaker bars, and torque wrenches using conventional square drive tooling.

Installation Notes

Extension sets require no installation but should be inspected before use for cracks, rounding, or deformation at the drive ends. Ensure the square drive connection seats fully before applying torque. Do not use extensions with damaged or worn drive tangs, as slippage under load can cause fastener or tool damage. Extensions should be stored clean and dry to prevent corrosion at the drive interface.

Technical Specifications

• Drive Size: 3/8 inch
• Included Lengths: 1.5 inches, 3 inches, 6 inches, 12 inches
• Piece Count: 4
• Weight: 1.32 pounds
• UPC: 099575812002

Standard Information

• Brand: APEX
• Manufacturer Part Number: 81200D