Midwest Shop Supply was founded by Joel S. Diener in 2019, rooted in a lifelong passion for machining. This passion stems from a rich family legacy in the industry, dating back to 1899 when George William Diener established Geo. W. Diener Manufacturing Co. in Chicago at just 23 years old.

Today, Midwest Shop Supply specializes in precision machining and custom fabrication, with a strong focus on bench vise replacement parts. While we take pride in producing high-quality vise components, our capabilities extend far beyond that—supporting a wide range of custom machining projects across multiple industries.

We are continually researching, designing, and developing new products, and we look forward to sharing these innovations along the way. With a steadfast commitment to precision, quality, and forward-thinking design, Midwest Shop Supply delivers cutting-edge solutions tailored to meet your specific needs.