. . "Operator, organizational, direct and general support, and depot maintenance manual drill, pneumatic, drifter, crawler mounted, self propelled, dry type, 220 lb class, minimum 4-1/2 inch bore, power feed, 1-1/2 inch lugged shank chuck w/ 12 each [sic] shank, rock drill (Chicago Pneumatic Tool Company model G-900) (FSN 3820-930-1917)"@en . . . . . . "Handbooks and manuals"@en . "Drill, pneumatic, drifter, crawler mounted, self propelled, dry type, 220 lb class, minimum 4-1/2 inch bore"@en . . . .