Patent for a new and improved post-hole digger. This design is "compris[ed of] an operating handle having a series of radial horizontal wings provided on their lower faces with downwardly-projecting flanges, cutting-blades having horizontal slotted arms at their upper ends adapted to fit between the flanges of the wings, said cutting-blades having their lower ends pointed or bent and curved inwardly and transversely, to bring the cutting edge of one blade out of the plane of rotation of the rear blunt edge of the preceding blade, and adjusting bolts and nuts" (lines 7-18).