Sunex Tools 3646 – 3/8 in Drive Low-Profile Impact Hex Driver Set, 16-Piece SAE/Metric

Versatile hex driver set built for strength and precision

The Sunex Tools 3646 hex driver set is forged from CR-MO steel, delivering reliable performance under high torque and impact use. Its solid, one-piece construction eliminates weak points, offering lasting durability for demanding jobs.

Designed with a low-profile geometry, this 3/8-inch drive set excels where space is tight, making it a practical choice for engine bays, chassis work, and workshop maintenance. Dual size markings—laser etched and roll stamped—ensures quick, confident identification, helping you keep momentum on busy projects.

With a generous 16-piece lineup that includes both SAE and metric sizes, you can tackle a wide range of fasteners without swapping tools mid-task. The set comes in a heavy-duty storage case that simplifies transport and keeps everything organized for on-site work or shop use.

Key features at a glance

• CR-MO steel construction provides strength and flexibility for high torque impact tools.
• Solid one-piece design eliminates weak points for enhanced durability.
• Low profile design enables access to tight spaces and recessed fasteners.
• Dual size markings (laser etched and roll stamped) ensure permanent identification.
• Heavy-duty storage case for organized transport and secure storage.
• Meets ANSI standards for reliable performance and durability.
• 16-piece set includes SAE and metric sizes for versatile use.

Included sizes span SAE from 1/4 inch to 3/4 inch and metric from 6 mm to 19 mm, covering a broad spectrum of common fasteners for automotive, marine, and DIY projects.

Whether you’re performing routine maintenance, tackling a repair project, or building something new, this Sunex 3646 set offers a practical balance of reach, durability, and organization. It’s a dependable option to consider for those who value strong tooling that stays organized on busy days.