Ken Bevington started Princeton Tool in 1997 in the basement of his family’s home, and the Mentor, Ohio company has since become known for precision work supporting aerospace and industrial gas turbine programs. Today, Princeton Tool operates more than 135,000 square feet of manufacturing space with over 150 employees across four states, and its quality system is certified to AS9100D and ISO 9001:2015.
AS9100D
ISO 9001:2015
GE Aviation Specifications S-1000
GE Aviation Special Processes (EDM) Certification GT193
NADCAP Certification for Alternative Machining
AS9102 Revision B
GEAVIATIONS1000
Quality certification
Minutemen Precision Machine & Tool CorporationFounded in 1969 by an Air Force-trained machinist, Minutemen Precision Machine & Tool Corporation makes close-tolerance machined airframe parts, assemblies, and tooling for military and commercial aerospace. The Castoro family still runs the company, which now employs more than 70 people in a 35,000-square-foot facility with more than 25 CNC milling centers and can produce parts up to 12 feet long. Its aerospace quality system is certified to ISO 9001:2015 and AS9100:2016.POTTSTOWN, PA
Rhinestahl CorporationWhat began in 1967 as a two-car-garage tool shop has become Rhinestahl Corporation, a Mason-based manufacturer of aircraft engine tooling and complex precision assemblies. Its Customer Tooling Solutions division supplies OEM-aligned engine tooling, while its Advanced Manufacturing Group handles demanding machining, fabrication, and capital-equipment assembly for aerospace and other industries. Rhinestahl’s manufacturing operations include a 125,000-square-foot Mason facility, and its AMG division holds AS9100D/ISO 9001 and ITAR certifications.MASON, OH
Giuliante Machine Tool, IncFounded in 1978 as a two-person shop, Giuliante Machine Tool Inc. manufactures precision aerospace gears, splines, and related machined components for military and commercial aircraft. The company has grown from a 3,500-square-foot Port Chester operation into a 27,000-square-foot facility, while retaining a distinctive in-house approach: it finish-machines its gear blanks under one roof rather than subcontracting that work. GMT’s quality system is certified to AS9100 Rev. D and ISO 9001:2015, with inspection performed in a climate-controlled lab using NIST-traceable gauges.PEEKSKILL, NY
Prompton Tool IncSince 1968, Prompton Tool has been a Honesdale, Pennsylvania manufacturer serving aerospace and medical customers. Its 100,000-square-foot operation is known for taking precision work from prototype through production, backed by an AS9100-certified quality management system.HONESDALE, PA