NOS Proto Yankee style spiral ratchet screwdriver accessory kit 975A. Includes case, 3 drill points, a slotted screwdriver bit, and a countersink. Fits push screwdrivers with the Yankee style chucks in the 7/32” (5.5mm) size. Fits Stanley Yankee spiral ratchet screwdrivers 35, 135, 33, 133, 233, 433 and others including Proto and Craftsman. These are new old stock, never used. Case measures 4”x3” closed. These are from the late 1950’s to 1960’s when Pendleton Tool owned Proto.
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