Leinbachs post hole diggers are designed for rugged durability and economy. The boom and yoke are made from heavy tubular steel for added strength. The oil filled gearbox has tapered bearings for extended life. Augers are available in 6in., 9in., and 12in. with replaceable cutting bits. This post hole digger is a must for all farmers, ranchers, contractors and landscapers. U.S.A.