Tool bits are non-rotating cutting bits for power tools like milling machines and lathes. They are made of hardened high carbon tool steel and are specially shaped to cut specific profiles. Standard profile geometry standards ensure operator safety and effective chip removal. Tool tips can be resharpened and re-profiled for different cuts. Design considerations prevent tip failures that could cause injury to the operator. Some tool bits have several cutting edges and there are specialty bits that use ceramic or diamond cutting inserts.
The term tool bit generally applies to non-rotating type cutting bits for power tools such as milling machines and lathes. Tool bits are specially shaped to cut a specific profile, depth and width such as screw threads, slots and flat cuts. They are usually made from hardened high carbon tool steel and can be re-sharpened when dull or re-profiled for different cuts. While bit profiles differ greatly between applications, there are several standard profile geometry standards that are applied to most bits. These ensure operator safety and effective chip removal during cutting.
A tool bit is the cutting edge of most power tools and machines. The tip of the non-rotating tool is typically held securely in a locking device known as a toolbox. The tool tip can perform a static cut with the workpiece being rotated against it as in the case of a lathe. Alternatively, in applications such as milling machines, the tool tip may reciprocate or move back and forth over a static workpiece.
Tool bits are made from high carbon tool steel and are hardened and tempered to hold a sharp cutting edge and withstand the stress of cutting. The shape of the tip is determined by the type of cut it has to make and the material with which it is cut. While there are many different tool bit designs, most have several common geometric characteristics. These include a rounded nose radius on the cutting edge which ensures a smooth cut and strengthens the point.
Other important standards are the rear and side rake angles. The rear rack angle of a tool bit controls the direction in which chips or chips are removed from the cutting surface. It also effectively pulls the tool tip into the workpiece, thus relieving operator pressure on the bit. The rake angle reduces the resistance of the workpiece to movement of the tool tip. These angles are especially important considerations when shaping a tip for a specific material. For example, a drill intended for use on brass would have no side or back rake, while a drill used to machine aluminum would have a side rake of 15 degrees and a back rake of 35 degrees.
These design considerations not only ensure efficiency, but also prevent tip failures that could cause injury to the operator. Tool tips can be resharpened to different profiles as and when the need arises. They can also be re-sharpened when they become dull. Some tool bits also have several cutting edges and only require you to go around the tool clamp as they become dull. There are also several types of specialty bits that use ceramic or diamond cutting inserts mounted on a steel shank.
Protect your devices with Threat Protection by NordVPN
