Paramount PAR37150 Hex Key 1.50mm Long Arm

Product Description

The PARAMOUNT PAR37150 is a 1.50mm metric hex key designed for driving hex socket fasteners in tight or hard-to-reach locations. The long arm configuration provides extended reach and increased torque leverage compared to standard-length keys. Constructed from steel, this tool is suited for general mechanical assembly, equipment maintenance, and field service work. With an overall length of 3-1/32 inches, it is compact enough to carry in a standard tool pouch while still offering the extended arm advantage. HVAC technicians, plumbers, and electricians routinely use metric hex keys when servicing equipment panels, valve packing nuts, and component mounting hardware.

This hex key is appropriate for residential and light commercial service applications where 1.50mm metric fasteners are encountered. Typical use cases include adjusting set screws on shaft collars, blower wheel hubs, valve stems, and electrical enclosure hardware. The long arm style makes it particularly useful when access is limited by adjacent components or when additional torque is needed on stubborn fasteners without resorting to a T-handle or driver.

Key Features

• 1.50mm metric hex size for precise fitment in standard metric socket-head fasteners
• Long arm style provides extended reach and improved torque input
• Steel construction for durability in daily trade use
• 3-1/32 inch overall length balances reach with portability
• Hex end configuration for direct fastener engagement

Compatibility

Designed as a standard long-arm metric hex key for use with 1.50mm hex socket fasteners found across HVAC, plumbing, and electrical equipment.

Installation Notes

This tool requires no installation. Before using this key to service mechanical or electrical equipment, de-energize and lock out the system per applicable OSHA lockout/tagout procedures. Apply steady, controlled force to avoid rounding hex sockets, particularly on smaller metric fasteners. Inspect the key tip for wear before each use and replace if deformation is observed.