Apex 3218 Impact Socket 3/8 in Drive 9/16 in 6-point

Product Description

The APEX 3218 is a 6-point impact socket designed for 3/8 inch drive impact wrenches and rattle guns. It accepts a 9/16 inch hex fastener and measures 2 inches in overall length, placing it in the standard-length category. Constructed from alloy steel and processed through a proprietary heat treat method, this socket is built to handle the high-torque cycling common in HVAC, plumbing, and electrical trade work. The tighter manufacturing tolerances translate to a more consistent fit on fastener heads, reducing rounding and improving torque transfer during repeated use. Licensed tradespeople and experienced DIYers alike will find it suitable for production and service applications.

This socket is suited for residential and light commercial service environments where 3/8 inch drive impact tools are standard. Common applications include equipment panel fasteners, conduit fittings, pipe flanges, and mechanical assembly work. The 9/16 inch SAE size covers a wide range of fastener sizes found on HVAC equipment frames, electrical enclosures, and plumbing fixture hardware. It is rated for use with pneumatic and electric impact drivers operating at standard 3/8 inch drive torque ranges.

Key Features

• 3/8 inch drive, 9/16 inch socket size in SAE measurement
• 6-point contact geometry for improved torque transfer and reduced fastener rounding
• Alloy steel construction with proprietary heat treat process for greater strength and extended service life
• 2 inch overall length standard configuration
• Tighter manufacturing tolerances for consistent fit across fastener batches
• Meets ANSI and DIN standards

Compatibility

Designed as a standard SAE impact socket for use with 3/8 inch drive pneumatic and electric impact wrenches. Compatible with fasteners requiring a 9/16 inch hex drive.

Installation Notes

Installation is performed by mechanics, HVAC technicians, electricians, and plumbers using standard 3/8 inch drive impact tools. Ensure the socket is fully seated on the fastener and impact tool anvil before applying torque. Do not use impact sockets with hand-drive ratchets beyond rated torque limits, and inspect the socket for cracks or wear before each use. Refer to equipment service manuals for fastener torque specifications.