Per Worthpoint;
NO. 40 - PUSH DRILL
YANKEE / NORTH BROS. MFG. CO.
EARLY / PRE-1900
RARE!!! RARE!!! RARE!!!
The No. 40 push drill is the rarest of the YANKEE push drills. It is also the earliest model of push drill made by North. Bros. (1898)
The No. 40 is different from all the other North Bros./YANKEE push drills (Nos. 41, 42, 43, 44) in that the drill bit does not reciprocate in alternating directions as the handle is pumped up & down ---- it always turns clockwise.
This example is from some of the earliest production of the No. 40 ---- probably 1898, based on the following observations.
It has only one patent date (1897) It is marked "YANKEE," but has no model number --- t is no "No. 40" City name in the marking is spelled out in full: "PHILADELPHIA" Maker name includes "MFR'S" (very unusual) It has the early style chuck which only takes only ¼ turn to the right to release the bit, rather than about 8 turns to the left to release the bit as on later models Markings: "YANKEE / NORTH BROS. MFG. CO. MFRS. / PHILA., PA. U.S.A. / PAT. NOV. 2 - 97 / OTHERS PENDING)
Size: OAL = 9.5" (extended)