Klein Tools 666 Square Recess 2 Screwdriver 8 Inches

Product Description

The KLEIN TOOLS 666 is a cushion-grip, round-shank screwdriver with a Square Recess No. 2 tip, sized at 8 inches overall. It is built for electricians, plumbers, HVAC technicians, and other trade professionals who need reliable hand-tool performance on Square Recess fasteners common in electrical panels, junction boxes, and mechanical enclosures. The cushion-grip handle reduces hand fatigue during extended use, and the round shank design allows for standard turning without the need for a wrench. At 0.3 pounds, it is a lightweight, one-hand tool suited for daily field and service use.

This screwdriver is used wherever Square Recess No. 2 fasteners appear in residential and commercial trade work. Typical applications include electrical rough-in and finish work, panel wiring, device installation, and general mechanical assembly. It is a common addition to a field technician's everyday carry due to the prevalence of Square Recess drive fasteners in North American electrical and construction hardware.

Key Features

• Square Recess No. 2 tip for positive engagement with matching fastener heads
• Cushion-grip handle reduces hand fatigue during prolonged use
• Round shank construction for standard manual driving
• 8-inch overall length provides reach in deeper boxes and enclosures
• Lightweight at 0.3 pounds for comfortable one-handed operation

Compatibility

Designed for use with Square Recess No. 2 drive fasteners commonly found in electrical devices, panels, and mechanical hardware in residential and commercial applications.

Installation Notes

This tool is for manual hand use only and should not be used with power-drive adapters unless explicitly rated for such use. Always de-energize electrical equipment and follow NFPA 70E safe work practices before using any hand tool inside live panels or enclosures. Inspect the tip for wear before use, as a worn Square Recess tip can slip and damage fastener heads or cause injury.

Technical Specifications

• Drive Type: Square Recess No. 2
• Overall Length: 8 inches
• Shank Style: Round
• Handle Type: Cushion Grip
• Weight: 0.3 pounds

Standard Information

• Brand: KLEIN TOOLS
• Manufacturer Part Number: 666