The first LRRCW model of
the No.2 drill retained the slender shape of the earliest No.2 types
the two-jaw, springless chuck could hold bit shanks no larger than
inch diameter. The associated drilling thrust did not tax a man's
grip. Later types such as the Type JI at right, carried chucks
accepted larger bits, 1/4 inch in the case of the Type JI, and so a
with the shoulder as well as a grip on the side handle were in
Hence, the mushroom shape of the end cap.