Who we are:

Keystone Precision & Engineering, Inc. is a full-service precision machine shop specializing in CNC Milling, Turning, Wire EDM, Mechanical Assembly and Design Services.  We offer a complete line of services ranging from design through prototype to full production with the complete assurance of professional attention to detail and quality throughout every aspect of your job.

Our customers span a wide range of industries, including Military, Medical, Semiconductor, Commercial and Pharmaceutical.   Due to our state of the art CAD/CAM system, we are able to process your ideas into top line machined components.  Our goal in every instance is to be cost effective, efficient, and deliver a quality product on time to meet your requirements.

We accomplish this goal by continually investing in the technologies and machinery that allow us to upgrade our capabilities and decrease production costs. At Keystone, we work together to meet the requirements of all businesses by offering a variety of inventory programs including: Kan-Ban, Just-In-Time, Blanket Orders, and Ship to Stock.

We are currently ISO 9001:2015 certified and wehave been ITAR registered since 2013.

We are passionate.  We have earned a reputation in the industry for setting a high standard of quality and professionalism within the machining community.  Keystone will provide you with the personalized service combined with creativity and integrity that your company deserves.

When you need to have the next best, most important item manufactured, our team of experts will be there to assist you through the process and help your company meet its goals on schedule.  Our goal at Keystone Precision & Engineering is to be a true one-stop source for all your machining and assembly requirements.

“Quality starts with the first part. If it’s wrong the customer won’t be happy.”

Keystone Precision & Engineering’s foundation of success is rooted in providing complex, close tolerance machine parts to loyal customers that have become accustomed to Keystone’s excellent quality, service, and delivery. Consistency is key:  The last part should be the same as the first.  We are always willing to work with the customer to ensure the product works right, from the start, in a new application.  We often consult our customer on design changes that can improve the manufacturability of the part while possibly reducing the price structure.

Keystone combines craftsmanship with modern quality management methods, including traceable calibration of all metrology and measuring systems used to accept product; application of Statistical Process Control and FAI Reporting.  We have recently replaced our older model CMM with a completely Programable Mitutoyo CMM.  We are currently updating our ISO registration to comply with the new standard:  ISO 9001:2015.

Keystone has assembled an experienced team of engineers and manufacturing specialists dedicated to creating solutions that not only exceed expectations, but also deliver measurable cost savings with a focus on continuous improvement and quality.  We take pride in the quality of our work and actively seek opportunities to optimize our processes, invest in our equipment and train our team to ensure we take care of each and every one of our customers as if they were our only customer.

Our modern 14000 square foot facility is located near major commerce centers and industries in Northern Massachusetts and Southern New Hampshire.