EXTRA DISCOUNTS: Purchase this item by itself or with any other items from Precision Marshall's category to receive an extra discount based on the total value of category products in your Shopping Cart. Click the link for more information.This Super-7 Ground and Polished Drill Rod is made by Precision Marshall Steel Company. The steel type is AISI S-7 shock-resistant tool steel, annealed for easier machining. It has uniform machining properties and consistent response to heat treatment through carefully controlled chemical analysis.Super -7 drill rod is an excellent shock steel that can be and often is used in hot work applications where the tool temperature does not exceed 1000°F. It combines the qualities of high strength and good ductility for cold and medium hot work applications.Identification of each production lot is maintained, and a certified chemical analysis can be provided upon your request.The drill rod ends are saw-cut and chamfered or deburred when the diameter is 3/8" or greater. This processing protects other rods from scratching, helps your set-ups and improves safety in handling. Smaller diameters are accurately cut with automatic die-cutters. At least one end is painted black for easier identification of the steel type.The Diameter |D| tolerance is ±.0003" for rod diameters less than .124, ±.0005" for diameters .125-.499, and ±.001" for diameters of .500 inches and greater. The Length |L| tolerance is +.125/-.000.The available diameters are 1/16 to 2 inches. The available lengths are 36 and 144 inches. Please contact us if you need a different size, or if you need us to make any alterations.DELIVERY TIME: Normally in stock and ships the next business day.SHIPS FROM: Precision Marshall products are sent directly to you from the warehouses in Bolingbrook, IL; Hartford, CT; Euless, TX; or Santa Fe Springs, CA.MINIMUM ORDER: None.HEAT TREATMENT: Preheat thoroughly at 1200-1300°F, and raise to hardening temperature of 1725°F. Hold for one hour and quench in still air. Upon reaching 150°F, steel should be tempered without delay.TEMPERING DATA:
The Shopping Cart is currently empty
