About Us

Co-founded in 1976 by Charles D. Berg and his cousin, Larry Berg, American Machine & Gundrilling (AMG) operates from a modern, spacious facility in Maple Grove, Minnesota. We value our Midwestern heritage and prioritize a family-oriented operation; growing with our employees and working with our Midwestern partners are tenets of our practice.

History of American Machine & Gundrilling, Inc.

The history of AMG predates the company, beginning with the foundation of another company, American Machine & Tool Company, by Chuck’s father, Carl A. Berg. Carl Berg was a co-founder of the MTMA/MPMA and a legendary influence on the Minnesota manufacturing community. Backed by Carl’s expertise and ready to take on a market with enormous potential, Chuck and Larry founded American Machine & Gundrilling.

Moving into its 3rd Generation, the business expanded into a modern manufacturing facility in the Twin Cities suburbs. Community and family are at the center of our operation.

Precision Hole Boring & Drilling for Any Application

Using drills designed initially for boring holes in guns, AMG utilizes the latest, specialized equipment to create complex and challenging hole types, including concentric and intersecting. Our 50 years of experience and custom equipment and technology allow us to work with exotic and precious metals, plastic polymers, and other materials. Manufacturing components with AMG gundrilling techniques include diameters ranging from .055” to 2.75”, depths of 8” to 360”, an unlimited number of holes with a bolt circle diameter up to 36”, manufactured to tolerances of ±0.0003” and surface finishes of 16 to 20 μin.

Quality Products & Honest, Professional Service

Consistently exceeding industry standards, our gundrilling capabilities are the go-to method for abnormal and difficult hole types. Our processes include specialized materials and individualized, state-of-the-art equipment singular to AMG and can achieve challenging diameters and depths. Working with other material manufacturers, our vast resources will help you create or find the necessary products to complete your projects.

Honesty and integrity are the cornerstones of our business, with quality and accuracy to ensure the components you need meet the most stringent requirements. AMG is an essential machining manufacturer for Minnesota and nationwide with a second-to-none service.

Solutions for Every Industry from American Machine & Gundrilling

AMG offers high-accuracy boring and drilling operations with the latest equipment and 50 years of experience, providing comprehensive customer service and creative guidance to fabricate the necessary components to meet your requirements. Our drilling capabilities allow us to create hole diameters down to thousandths of a decimal and achieve repeatability, offering high-tolerance straightness. Want help manufacturing custom components? AMG offers engineering assistance to ensure products work as intended in the real world. Contact AMG for more information or request a quote for a custom service.