Engineered for depth, designed for durability. The Klein Tools 646-1/4 Hollow-Shaft Nut Driver is the go-to choice for professionals who demand precision and performance in tight and recessed spaces. With a full 6-inch hollow shaft, this tool offers extended reach and effortless access to nuts on long bolts or stacked terminal blocks—especially where a standard nut driver can’t reach.
Built from chrome-plated, heat-treated steel, the shaft resists corrosion and delivers long-lasting strength on the job. The iconic Cushion-Grip™ handle ensures superior comfort and torque—even in slippery or high-torque conditions—reducing hand fatigue while enhancing control. Whether you’re in HVAC, electrical, appliance repair, or general mechanical work, this driver offers reliable performance and professional-grade quality.
Featuring Klein’s Tip-Ident® color-coded handle, it’s easy to identify the 1/4-inch size in a crowded tool bag. Proudly made in the USA, this tool meets or exceeds ANSI/ASME standards—so you can trust it for accuracy, safety, and strength.

Reviews
There are no reviews yet.