Located in South Central Pennsylvania

115 Newark Street    Littlestown  ▪  PA ▪  17340    Ph. 717-359-9256    Fax 717-359-4198

Keystone Machine Inc. is a precision machining job shop and contract manufacturer. The company’s 27,000 square foot facility is located in Littlestown, Pennsylvania, just over the Maryland line, centrally located between Westminster, MD and Gettysburg, PA. The company has been in business since 1987. The current employment is 30 machinists, assemblers and overhead personnel.


Keystone has been successful providing competitively priced, high precision, machined components to customers in industries such as; power tools, aerospace, military ordnance, earth moving equipment and pump manufacturers. Electrical and mechanical assembly is another service we can provide. Some of our assemblies are complex with up to approximately one hundred parts and requires UL and CSA test board compliance and inspection at the manufacturing site.


In the area of quality, we are ISO 9001:2008 certified. See our ISO Certificate by clicking here ISO Certificate .  We are also understand AS9100 quality reporting and will perform PPAP’s and SPC if required  Most importantly, we have achieved “certified supplier” status to several of our customers.


The systems at Keystone are highly integrated and up-to-date. SysPro, a state of the art ERP system, is designed to control inventories, manage production, purchases, sales, accounting and cost control functions. Sales orders can be received via internet/e-mail interface or fax and on demand status reporting of work performed is available. The Engineering Department uses AutoCAD for design and Master cam for CNC processing. All CNC programs are controlled and downloaded to machines by DNC.


Well-rounded machining capability all in very good control utilizing state of the art equipment and systems necessary to meet your demands.