Department of Army supply catalog. Ord 8 SNL. Field and depot maintenance allowances. J-478. Buffer, tire and tube, flexible shaft, electric, portable, ½ hp, 110 v. 60 c, sgle-ph, 1725 rpm, complete w/flexible shaft to grinding wheel, and one extra flexible shaft and housing, complete (Albertson & Co. no. 1020) (40-B-910); Apr. 1950.