B&M Machine Co. has been a precision machine shop in Belleville, New Jersey since 1947 — now in its third generation. We mill, turn, finish, and inspect brass, aluminum, stainless, and plastic parts under one roof, for customers who need precision and a finish that matches.

We're not the biggest shop, and we don't try to be everything to everyone. If your job needs tight tolerances and a surface finish that's actually to spec, we're the right shop. We run Haas and Mazak equipment, finish in-house, verify with CMM, and answer the phone.

Where We Come From

B&M Machine was founded in 1947, originally manufacturing fasteners. For our first 40 years we were almost exclusively an aerospace shop — making high-precision fasteners from exotic materials like Inconel, Waspaloy, and Hastelloy. That background shaped how we run every job: the attention to tolerance, the process discipline, the expectation that a part either meets spec or it doesn't ship.

Over the decades we grew into contract manufacturing for industrial, pharmaceutical, and custom hardware customers. The third generation of the Bing family runs the shop today, in the same Belleville facility, with modern Haas and Mazak equipment alongside the standards that haven't changed since 1947.