Brochure

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Since the day we invented the knockout in 1928, we’ve made it our
mission to build for the world’s expert tradespeople. For decades,
our manufacturing plant in Rockford, IL has been building the widest
range of high-quality hole-making products for trade professionals.
Greenlee knockouts are known as industry-leading products that allow
professionals like you to complete any job more quickly and reliably.
As the industry evolves and technology advances, we continue our
90-year legacy of providing optimal knockout solutions.
BUILDING AMERICA
SINCE 1862