It sounds like it's one of those wrist breaking, one arm bandit's, that I used for FIFTEEN plus years, and loved it!
Had to give up mine, because the there wasn't any blade too sharpen anymore. The blade was part of the flighting, non- replaceable! No parts available! Discontinued!
Good Luck!
shawner! Most carbs, are discontinued too.
JIFFY, made some of the first and best augers at the time! (1973 Second Hand model was mine.) Tough and simple!