Receiving the ISO Certification symbolizes the dedication of O. Keller Tool employees and management to provide a quality product, as well as quality services to it’s customers. Our climate-controlled Inspection Lab is outfitted with the latest high-tech equipment and utilized throughout the manufacturing process. From the day customer specifications are received to the shipment of completed orders, the quality of your job is assured by integrated quality control checks and inspections. Our commitment to quality dictates our processes and procedures.