GGG-H-506D, FEDERAL SPECIFICATION: HOE, MATTOCK, AND PICK (21-AUG-1962) [NO S/S DOCUMENT]

GGG-H-506D, FEDERAL SPECIFICATION: HOE, MATTOCK, AND PICK (21-AUG-1962) [NO S/S DOCUMENT]., This specification covers hoes, mattocks, and picks used for hoeing, digging, grubbing, and picking in clay, hard earth, stones, and other hard substances.