OUR CNC & PRECISION MACHINING SERVICES

H&M Machine Service operations were relocated under Boone Center in 2025. Through this partnership, we provide complete precision machining solutions from our plant in St. Peters, Missouri. Our services include:

CNC Swiss Machining

Swiss lathes are engineered for unmatched precision, delivering accuracy down to just a few micrometers. Their design provides exceptional stability and eliminates deflection. Whether the need is for miniature parts or intricate geometries, Swiss machining offers the perfect combination of efficiency, reliability, and quality with every piece we produce.

CNC Milling

Our advanced CNC milling equipment provides high repeatability and tight tolerances, making it ideal for both prototype development and high-volume production runs. We can produce parts that meet the most exacting specifications while maintaining efficiency and consistent quality. Milling offers the reliability and precision necessary to deliver superior results every time.

Cross Drilling

We provide high-quality cross-drilled components backed by a commitment to excellence. Cross-Drilling is ideal for components where intersecting holes or fluid passages are required. Our cross-drilling capability ensures clean, repeatable holes that enhance part performance and assembly fit.

Tapping

Tapping delivers threaded holes that meet your exact specifications for strength, alignment, and fit. We use advanced tapping equipment to produce clean, accurate threads in a wide range of materials. This service enhances the performance and assembly of your parts, for reliable fastening and superior end-use results.

Centerless Grinding

Centerless grinding removes material without the use of a fixed center point. This process enables tight tolerances and consistent results across high-volume production runs. It’s ideal for achieving roundness, fine finishes, and accurate diameters on cylindrical components such as pins, shafts, and bushings.

Heat Treating

Heating treating of CNC machine shop parts

Heat treating enhances the strength, hardness, and durability of metal components by carefully controlling heating and cooling cycles. Whether the goal is to increase wear resistance, improve machinability, or relieve internal stresses, our heat-treating process ensures each part achieves its intended mechanical properties.

Plating

Plating provides both protection and performance by coating metal parts with a thin layer of another material to improve corrosion resistance, surface hardness, and appearance. Our precision plating services help extend the life of components while also enhancing conductivity and wear resistance when required.

Kitting & Assembly

Kitting streamlines production and assembly by organizing multiple components into ready-to-use packages tailored to a customer’s specifications. Our team carefully labels, counts, and packages parts for accuracy and efficiency. Our kitting service helps customers reduce handling time and improve workflows.

Ask us about special packaging, bar coding, and inventory programs.

IN-HOUSE CUSTOM MACHINE PARTS PRODUCTION & EXPERTISE

Wondering why you should order from H&M Machine, a BCI Company? We are a fully equipped, state-of-the-art machine shop designed to handle projects of all sizes and complexities. Our expansive floor is home to advanced CNC and precision machining technology, allowing us to complete nearly every stage of production in-house. By minimizing the need to outsource secondary operations, we maintain quality control, reduce lead times, and deliver true turnkey solutions to our customers.

Whether it’s a single prototype or a full production run, our team uses the latest tools to guarantee precision, consistency, and reliability in every part we produce. We have the major machines needed for any job, and a full range of finishing equipment to refine every final product to exact specifications.

GET STARTED: TRUSTED SERVICE FOR PRECISION PARTS

With industry-leading equipment and decades of manufacturing experience, BCI’s CNC machine shop services deliver the highest level of craftsmanship and dependability. We are committed to staying at the forefront of machining technology so we can continue to provide faster turnarounds, better quality, and cost-effective solutions — all under one roof. 

We don’t just make parts. We build partnerships based on trust, quality, and a shared commitment to excellence. 

Ready to experience the precision that sets H&M Machine, a BCI Company apart? Contact us today to learn how we can bring your next project to life.