What is the geometric angle of the drill bit?
A TRUSCO bit is a tool used to drill through holes or blind holes in solid material and to expand existing holes. The TRUSCO bit acts on its head, and its cutting edge and the cross edge act as a tool. In order to make the taper surface of the cutting part not touching the workpiece, the value of the rear angle and back angle should be selected according to the material of the workpiece.
The commonly used bit, roughly divided into rolling twist drill, full grinding drill, is divided into straight shank drills, taper shank drill and 1/2 drill, double auger, single head, short drill center drill, six angle shank drill, electric hammer drill, impact drill, the material can be divided into 4241# and 4341#. 9341#, M35, M42, 6542#, and alloy etc..