Paramount PAR37210 Hex Key 3/16 Inch Short Arm

Product Description

The PARAMOUNT PAR37210 is a short-arm hex key sized at 3/16 inch, designed for driving hex socket fasteners in confined spaces where a full-length L-key cannot fit. The short arm measures 2-51/64 inches in overall length, giving the technician precise control and torque access in tight quarters. At 0.035 pounds, it is a lightweight, single-piece hand tool suited for mechanical, HVAC, plumbing, and electrical service work. Licensed tradespeople and experienced DIYers reach for this key when clearance around a fastener head is limited and a standard long-arm key would foul on adjacent components or panels.

This hex key is used across residential and commercial service applications wherever 3/16 inch hex socket fasteners appear. Common install scenarios include tightening set screws on pulleys, blower wheel hubs, valve stems, and electrical enclosure hardware. The short-arm configuration makes it practical for access panels, equipment interiors, and any assembly with restricted swing radius. It is sold individually per package.

Key Features

• 3/16 inch hex drive fits standard 3/16 inch hex socket fasteners
• Short-arm style provides improved torque control in confined spaces
• 2-51/64 inch overall length for compact reach
• Hex end type for direct socket engagement
• Lightweight at 0.035 pounds for easy single-hand use

Compatibility

Designed as a standard 3/16 inch short-arm hex key suitable for any hex socket fastener of matching drive size across HVAC, plumbing, electrical, and general mechanical service applications.

Installation Notes

This tool is used by HVAC technicians, plumbers, electricians, and mechanical service professionals when servicing equipment fastened with hex socket screws. Always power down or de-energize equipment and shut off fluid supply before accessing internal fasteners. Inspect the hex key tip for wear or rounding before use, as a damaged tip can strip fastener sockets. No special certifications or codes govern use of hand hex keys, but follow applicable equipment manufacturer service procedures.