Alger Precision Machining, LLC began in Ontario, CA. in 1958 as a modest automatic screw machine job shop. Since then it has transitioned into one of the largest precision screw machine shops in North America. We are full service provider utilizing New Britain's, Davenports, Brown & Sharpe's, CNC and Secondaries that manufactures an extensive array of high volume, medium complexity precision metal components to exacting print specifications for diverse OEM applications.