Klein is the only major tool manufacturer worldwide focused on electrical and utility applications. No other manufacturer of hand tools and related products used in electrical applications makes more …

For over 160 years, Klein Tools has remained dedicated to professional tradesmen worldwide, with a commitment to manufacturing the world's finest hand tools right here in America.

For over 160 years, Klein Tools has remained dedicated to professional tradesmen worldwide, with a commitment to manufacturing the world's finest hand tools right here in America.

For over 160 years, Klein Tools has remained dedicated to professional tradesmen worldwide, with a commitment to manufacturing the world's finest hand tools right here in America.

Klein is a family owned and operated corporation based in the Chicago area since 1857

From electrical testers to clamp meters and all the specialty testers in between, Klein's test and measurement tools are designed to make reading measurements on jobsites as simple as possible.

Klein provides a wide range of knives, scissors and other cutting tools for professional applications across all trades.

For over 160 years, Klein Tools has remained dedicated to professional tradesmen worldwide, with a commitment to manufacturing the world's finest hand tools right here in America.

Explore Klein Tools' comprehensive catalog for high-quality tools and accessories designed for professionals in various industries.

Scout® Pro Max tests and troubleshoots RJ11, RJ12, RJ45, and F-connector terminated cables and provides analog and digital tone generation for cable tracing. It measures cable lengths (via TDR) …