Klein Tools 328091 9-in-1 Pass-Through Nut Driver Tool | 3/16–3/4 in SAE Hex, Cushion-Grip

Overview

Meet a versatile powered-by-expertise tool designed for fast, precise fastening. The Klein Tools 328091 9-in-1 Pass-Through Nut Driver consolidates nine SAE hex sizes into a single, compact driver. Its pass-through design lets you drive nuts onto threaded rods of any length, reducing re-threading and work interruptions while you stay in control.

With a comfortable, large-grip feel and color-coded ends for quick size identification, this driver aims to streamline real-world tasks from assembly to repair. The tool embodies Klein Tools’ heritage of reliable, professional-grade craftsmanship, backed by six generations of American-made engineering and manufacturing.

Key design features

• Nine hex sizes cover common hardware: 3/16, 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 3/4 Inch
• Pass-through handle and barrels allow nuts to advance onto threaded rod of any length
• Extended wrench-assist on each barrel for added torque on tough fastenings
• Color-coded ends simplify quick size identification on the job
• Heavy-duty Cushion-Grip handle delivers comfortable, controlled turning
• Nesting barrels enable compact storage in bags or on benches
• Spring coils retain nuts and bolts on sizes 3/8, 1/2, 9/16, and 3/4

Real‑world use and benefits

• Ideal for driving nuts onto threaded rods in furniture, automotive, or fixture installations where length varies
• One tool replaces multiple drivers, reducing kit clutter while maintaining precise control
• One-handed operation is possible in cramped spaces, improving workflow and speed
• The color-coded design helps you rapidly select the right size during rapid tasks

Crafted by Klein Tools, a family-owned company with more than a century and a half of toolmaking experience, the 328091 reflects a commitment to durability, precision, and lasting performance. While outcomes depend on use conditions, this multi-nut driver is designed to enhance efficiency and reduce rework in everyday projects.

Heritage and assurance

Since 1857, Klein Tools has built tools that professionals trust. The 328091 is built to withstand daily use with robust materials and thoughtful ergonomics aimed at comfortable, consistent performance over many jobs.