The first LRRCW model of
the No.2 eggbeater drill did not just spring to life fully developed.
Only the LRRCW achieved that feat of inspiration, never imitated since
in any hand drill that I've seen. The first frame, the K1's at right, was
narrow and lacked any provision for a side handle. The next model,
the Type K2 at left, had a wider frame, presumably stronger. I have
never come across a broken frame in a No.2 drill. These frames were
made of malleable iron, a ductile, tough material in its time. Later
fromes were made of pot metal; they didn't break, either. Both of
the drills shown here have the cylindrical, flat-ended plain thrust bearing
that was barely adequate for the small bits these drills could hold in
their two-jaw, springless, 1877-patent chucks.
Keep your fingertips out of those
gaps next to the pinion !