Desktop drilling machine, abbreviated as bench drill, refers to a small drilling machine that can be placed on a workbench with a vertical arrangement of the main shaft. The drilling diameter of a desktop drilling machine is generally below 13 millimeters and generally does not exceed 25 millimeters. The main shaft speed change is generally achieved by changing the position of the V-belt on the tower pulley, and the main shaft feed is manually operated.

The components of a desktop drilling machine (referred to as a desktop drill) are as follows.

(1) The front end of the spindle frame is the spindle, and the rear end is the motor. The spindle and motor are driven by a V-belt;

(2) The spindle has a tapered hole at its lower end for installing a drill bit or drill chuck. The spindle speed can be adjusted by changing the position of the V-belt on the pulley. The feed of the spindle of the desktop drilling machine is manual;

(3) The column is used to support the spindle frame and worktable, and is also a guide column for adjusting the height of the spindle frame and worktable;

(4) The part of the workbench that holds workpieces;

(5) The machine base is used to support other parts of the drill;

In addition, also look at the locking handle and locking screw; Positioning ring, used to fix the spindle frame and its positioning.

The drilling diameter of a bench drill is generally below 13mm, and smaller ones can be used to process holes smaller than 1mm. Due to the small diameter of the processed hole, the spindle speed of the bench drill is generally high, with higher speeds approaching 10000r/min. The bench drill is compact and flexible, easy to use, mainly used for processing various small holes on small parts, and is widely used in instrument manufacturing, fitter and assembly.