Department of Army supply catalog. Ord 7-8 SNL. Organizational, field, and depot maintenance allowances. J-504. Drill, elec. portable, universal current, hv.-duty, 3/8 in. cap. 115°v (Milwaukee Electric Tool Corp no B-239) (40-D-343). drill, elec. portable, universal current, hv.-duty, w/vertical stand, 3/8 in cap 115 v (Milwaukee Electric Tool Corp. no B-239) (40-D-344); July 1950.