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The WILLIAMS COMFORT PRODUCTS HK-2mm is an L-type hex key sized at 2 mm, sold in bags of 25. L-type hex keys are a standard hand tool used across HVAC, plumbing, electrical, and general mechanical service work. The L-shape provides two usable ends: the short leg delivers torque and the long leg allows reach into tight clearances. These keys are a staple in any service technician's kit for fastening and removing socket-head cap screws and set screws found in equipment panels, fan assemblies, motor mounts, and valve packing glands.
The HK-2mm is suited for residential and light commercial service applications where small-diameter socket-head fasteners are common. The 25-piece bag format makes it practical for stocking a shop, outfitting a service vehicle, or maintaining a supply of replacements on a job site. Technicians working on equipment with compact fastener arrays will find the 2 mm size fills a specific gap in a standard hex key set.
Designed for use with standard 2 mm socket-head cap screws and set screws across HVAC, plumbing, and mechanical service applications.
Always ensure power or energy sources are isolated before using hand tools on energized equipment or pressurized systems. Select the correct hex size before applying torque to avoid rounding fastener sockets. L-type hex keys are hand tools and should not be used with power drivers or extension bars unless the tool is rated for that use.
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