Eklind Tool Co 21171 Metric Fold-up Hex Key Set 7-piece

Product Description

The EKLIND TOOL CO 21171 is a 7-piece metric fold-up hex key set built for trade and maintenance professionals who need compact, organized access to common metric hex sizes on the job. All seven keys fold into a single handle unit, keeping the set together and the keys protected when not in use. Keys are machined from 8650 chrome nickel alloy steel drawn to a tolerance of plus .000 / minus .001 inches, producing sharp, clean hex corners that seat fully in fastener sockets and resist rounding under torque. Sizes are clearly marked on the handle for fast identification without measuring.

This set covers the most frequently used small metric hex sizes — 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, and 6 mm — making it well suited for HVAC equipment panels, electrical enclosures, pump assemblies, and general mechanical maintenance work. A flat spring in the base of the case holds each key at any chosen angle or work position, reducing slippage during use. The compact folding form factor fits in a tool pouch, service van drawer, or technician belt bag.

Key Features

• 7 metric sizes in one fold-up handle: 1.5 mm, 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, and 6 mm
• 8650 chrome nickel alloy steel construction drawn to plus .000 / minus .001 inch tolerance
• Sharp, clean hex corners for full socket engagement and reduced fastener wear
• Flat spring retainer holds any key at the selected work angle
• Size markings on the handle for fast key selection without measuring
• Compact fold-up design stores securely in a tool pouch or service bag

Compatibility

Designed for use with standard metric hex socket fasteners across residential and commercial HVAC, plumbing, electrical, and general mechanical applications.

Installation Notes

Hex key sets are used by HVAC technicians, electricians, plumbers, and mechanical service professionals. Before servicing any equipment, power down electrical systems and follow applicable lockout/tagout procedures. Select the correct key size before applying torque to avoid fastener damage. Do not use extension bars or pipe extensions on fold-up style hex keys, as this exceeds the design load of the case hinge.