Made in USA Model No. 715 Double-sided guide features a Tap Drill Depth Chart, decimal conversions from 1/64" to 63/64" & a ruler graduated in 64ths Made of stainless steel - Etched graduations The Tap Drill Reference Table works with National Fine, National Course, American Standard Pipe and Metric threads Front side has a machine screw size tap drill chart for recommended 75% depth thread 6" overall length Product Description Specs The Tap & Drill Reference Table is a must have for any toolmaker, machinist or mechanic. The double-sided guide features a Tap Drill Depth Chart, decimal conversions from 1/64" to 63/64" & a ruler graduated in 64ths. The Tap Drill Reference Tale works with National Fine, National Course, American Standard Pipe & Metric Threads. Made in USA. Product Title Overall Size Width of Rule Model # General Tools 6" Stainless Tap & Drill Reference 6" (150 mm) 1 - 1/4" 715 For California Residents: WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood