Klein Tools 32327 27-in-1 Precision Screwdriver Set

The Klein Tools 32327 27-in-1 Precision Screwdriver Set consolidates extensive micro-fastener capabilities into a single hand tool. Designed for working on terminal blocks, small home appliances, pocket knives, and electronics, it eliminates the clutter of carrying dozens of individual drivers or loose storage cases.

At the center of its design is an internal bit storage system housing double-ended, industrial-strength bits alongside an integrated 3.5 mm nut driver. The tool covers a massive variety of tiny fasteners, including Phillips (#000 through #2), Slotted (1 through 3.5), Hex (0.9 to 1.5), Hex Security (2 to 3.5), and both standard TORX (T3, T4) and TORX Security (T5H through T15H). Switching between tasks requires only swapping bits out of the handle.

For fine control, the tool features a barrel equipped with a Rare-Earth magnet to hold fasteners firmly, enabling one-handed placement. The free-spinning cap allows you to apply steady downward palm pressure while rotating the barrel with your fingers, while the cushion-grip handle provides comfortable torque when tightening or loosening stubborn screws.

Because this is strictly a precision tool, it is not built for heavy-duty construction or large fasteners beyond standard micro-hardware sizes. The selection focuses heavily on security TORX and small electronics bits, meaning standard full-sized household screw sizes are not included.

Verdict: The Klein Tools 32327 is an ideal all-in-one precision driver for technicians, hobbyists, and anyone frequently repairing electronics or small appliances. It packs an exceptional variety of micro bits into a sturdy, self-contained handle.

• Total Functions: 27-in-1 (26 bit sizes plus 3.5 mm nut driver)
• Phillips Bits: #000, #00, #0, #1, #2
• Slotted Bits: 1, 2, 2.5, 3, 3.5
• Hex Bits: 0.9, 1.3, 1.5
• Hex Security Bits: 2, 2.5, 3, 3.5
• TORX Bits: T3, T4
• TORX Security Bits: T5H, T6H, T7H, T8H, T9H, T10H, T15H
• Magnet Type: Rare-Earth magnet
• Handle Type: Cushion-grip with spin cap

A great fit if you:

• Repair small home appliances, electronics, or terminal blocks.
• Maintain pocket knives that require small TORX or Hex security bits.
• Want a complete precision bit set without carrying a separate storage case.
• Need one-handed magnetic screw placement in tight spaces.

Consider something else if you:

• Need standard, full-sized screwdrivers for general construction or heavy automotive work.
• Require a wide assortment of different nut driver sizes.

Where are the extra bits stored?
All double-ended bits are stored directly inside the screwdriver handle, so you do not need an external case.

Does this driver hold screws magnetically?
Yes, the barrel features a Rare-Earth magnet that securely holds both the bits and the fasteners in place.

What security bits are included?
It includes Hex Security sizes 2, 2.5, 3, and 3.5, along with TORX Security sizes T5H, T6H, T7H, T8H, T9H, T10H, and T15H.