格林利兄弟的故事始于宾夕法尼亚州。他们的父亲,埃德蒙Greenlee已经开发出一种机器 木材制桶在家乡宾夕法尼亚州西部的克劳福德郡。墨水在他们父亲的 专利是 几乎干 当第一口油井钻1859年在宾夕法尼亚州西部和桶运送石油的需求飙升。双胞胎兄弟将他们父亲的机器用于木桶生产,获得了巨大的成功。 1862年, 桶 需求逐渐减少在宾夕法尼亚州,兄弟俩  搬到芝加哥,与他们的父亲的 祝福 继续 木头桶制作业务。在那里他们 建立了Greenlee兄弟公司。
The Greenlee brothers focus on problem solving for customer applications led to their first great invention, the hollow chisel mortiser in 1874. The hollow chisel mortiser revolutionized the process of making mortise and tenon joints in wood working around the world. The hollow chisel mortiser also was the inspiration for the Greenlee "Diamond G" logo that is used today.
Today Greenlee is a recognized leading manufacturer of high-quality tools for the professional trades person. Carrying on in the tradition of the Greenlee brothers, Greenlee is dedicated to innovating and developing the next generation of solutions improving safety, ergonomics and ease of use for professional tradesmen and women.  The Greenlee catalog offers a comprehensive product line for electrical trades from power distribution to residential electrical tools as well as the HVAC and Plumbing trades. As part of Emerson's Professional Tools group , Greenlee is partnered with RIDGID®.  Both Greenlee and RIDGID have extensive training experience and talents to leverage through NC3 certifications.