This is the body attachment for a drilling machine which is composed of the adjustable socket which houses the drill bit component that actually makes contact with the material.

Drill and Socket Construction

This is the body attachment for a drilling machine which is composed of the adjustable socket which…

"Three drill bits. The first the old, bad, but not yet quite superseded pattern, which is incapable of making a straight or clean hole of any considerable depth, and which loses its original diameter both in wear and in sharpening; the second the twist drill, which compares favourably with it in every one of these respects; and the third a pin drill, for enlarging a hole already existing." —The Encyclopedia Britannica, 1903

Drill Bits

"Three drill bits. The first the old, bad, but not yet quite superseded pattern, which is incapable…

"An ordinary vertical drilling machine, one of comparatively small size and single-geared having been chosen rather than a larger example with greater complication. When once properly started, this machine is self-acting, but for each hole the work has to be adjusted by hand so as to bring the required portion exactly under the drill spindle, and the small size of the table prevents its being at any great distance from the edge." —The Encyclopedia Britannica, 1903

Drilling Machine

"An ordinary vertical drilling machine, one of comparatively small size and single-geared having been…

A shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation.

Machine for Drilling

A shaftlike tool with two or more cutting edges for making holes in firm materials, esp. by rotation.

A field of oil wells.

Oil Wells

A field of oil wells.