Proto J5217MH Hand Socket 17mm 3/8 Drive 6-point

Product Description

The PROTO J5217MH is a 17 mm, 6-point hand socket with a 3/8 inch drive, finished in chrome plating. Built to standard length, it delivers solid contact across fastener flats, reducing the risk of rounding under load. The 6-point geometry applies force to the sides of the fastener rather than the corners, making it a reliable choice for stuck or corroded hardware. This socket is intended for use with standard 3/8 inch drive ratchets, extensions, and torque wrenches. Mechanics, technicians, and tradespeople across HVAC, plumbing, and general mechanical service will find it fits cleanly into existing 3/8 inch drive setups.

The J5217MH suits a wide range of service applications where a 17 mm fastener is common. This includes HVAC equipment panels and brackets, plumbing fixture hardware, electrical enclosures, and general mechanical assembly or disassembly tasks. Standard length makes it appropriate for most open-access fastener locations. It is sold individually and is well suited for professional tool kits, service vans, and shop benches where reliable metric coverage in the 3/8 inch drive range is required.

Key Features

• 17 mm socket size fits common metric fasteners found across HVAC, plumbing, and mechanical service work
• 3/8 inch drive compatible with standard ratchets, torque wrenches, and extensions
• 6-point contact pattern reduces fastener rounding compared to 12-point designs
• Chrome plating provides corrosion resistance and easy wipe-down between uses
• Standard length design fits most open-access fastener positions

Compatibility

Designed for use with standard 3/8 inch drive ratchets, extensions, and torque wrenches. Compatible with any 3/8 inch square drive tool in the PROTO lineup and other standard 3/8 inch drive systems.

Installation Notes

Ensure the drive tool is fully seated into the socket before applying torque to avoid slippage. Inspect the socket for cracks or wear before use, particularly when working with high-torque applications. Follow equipment manufacturer torque specifications and applicable service codes when reassembling fastened components. Keep the socket clean and dry to maintain the chrome finish and drive fit over time.