From Blue Print to Production…We Deliver! 

About Us

Master Tool & Die was founded in 1988 by Wayne L. Renfro. Since his retirement from TRW in Greeneville TN, Wayne actively oversees the daily operations and production. Master Tool & Die wants to partner with you in manufacturing quality precision parts with minimal lead time.

Quality: Our commitment to quality precision parts by skilled machinists is what separates us from the rest. Our machinists are skilled in the latest technology and equipment, including; CNC's, Wire EDM's, Mills, & Lathes. We are proud to say we have employees who have been with our company for over 20 years.

Delivery & Shipping: Time is of the essence. We strive to meet your deadlines, to minimize lost production.  FREE SHIPPING WITH MOST JOBS!

Pricing: We offer competitive pricing. Give us the opportunity to quote, and our prices will speak for themselves.


Many parts can be economically produced with wire EDM, such as: precision gages and templates, keyways, shaft and collet slots, splitting tubes, gears, internal splines, hexes, cams, extrusion molds, punches and dies from one piece of tool steel, short run stampings from stacked material, and many other exotic shapes.

 Program Files Downloadable with CAD/CAM and Master-CAM equipped machines.