KLEIN TOOLS 32303HD 20-in-1 Impact-Rated Multi-Bit Driver — Compact Handle Storage, Impact-Ready Bits

The Klein Tools 32303HD is a 20-in-1 impact-rated screwdriver and nut-driver set that combines 13 impact-grade bits, six nut setter sizes, and a 1/4" bit holder into one compact, handle-mounted tool.

This compact multi-bit driver is built to stand up to heavy-duty fastening tasks while keeping the most commonly used tips close at hand. Designed and manufactured by Klein Tools — a family-owned American company with over 160 years of toolmaking history — the 32303HD is engineered for tradespeople who need rugged compatibility with both manual and impact-driver use. Everything in the set is rated for impact use, and the removable blade doubles as an impact-driver attachment for fast switching between manual and powered driving.

How does this set save space in my tool bag?

Instead of carrying several individual nut drivers and screwdrivers, the 32303HD stores its bits inside the handle and consolidates six nut-setter sizes into the driver. This reduces clutter and ensures you have the right tip at hand without unpacking a large kit.

• Integrated handle storage holds 13 screwdriver bits.
• Six nut setter sizes from 1/4" to 9/16" replace separate nut drivers.
• 1/4" bit holder accepts common quick-connect drivers and impact adapters.

Can I use the bits with an impact driver?

Yes — every bit and the removable blade are impact-rated, so they are suitable for use with impact drivers. The blade detaches to become an adapter for a 1/4" quick-connect or standard 1/4" hex chuck, making the set versatile for both hand and power driving.

• Impact-rated bits reduce wear under high torque.
• Removable blade converts to an impact-driver attachment.
• Compatible with 1/4" quick-connect and standard hex chucks.

What screw and nut sizes are included?

The 32303HD covers the most commonly encountered screw and fastener types on job sites and in home projects. Bits include multiple Phillips, slotted, square (Robertson), and TORX sizes, plus a #2 combo bit for flexible use. Nut setters span from smaller 1/4" sizes up to 9/16" for many mechanical and electrical fastenings.

• Screwdriver bits: #0–#3 Phillips; 1/4" & 3/16" slotted; #1 & #2 square; T10–T25 TORX; #2 combo.
• Nut setters: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16".
• 1/4" bit holder for secure tip retention.

How durable and practical is the construction?

Klein Tools designed this driver for professional environments where tools are exposed to frequent impact, torque, and rough handling. The industrial-strength bits are housed inside a rugged handle that keeps them organized, and each component is manufactured to withstand impact-drive forces without premature failure.

• All bits are impact-rated for heavy-duty use.
• Handle storage organizes bits and protects tips between jobs.
• Klein's manufacturing and quality standards support long service life.

Who is this for? The Klein Tools 32303HD is aimed at electricians, HVAC technicians, carpenters, maintenance crews, and serious DIYers who demand a small, durable, all-in-one driver that works with both hand and power tools. If you need a portable, impact-ready solution that covers common screw and nut sizes while minimizing tool bulk, this set is built to meet those needs.