Turning (boring) knives, planing (inserting) knives, milling cutters, broaches and files.

Two. Classification by material

2. 1 high speed steel (common, high performance, powder metallurgy)

2.2 cemented carbide (high temperature carbide)

2.3? Ceramics (pure alumina ceramics, composite alumina ceramics, composite silicon nitride ceramics)

2.4 Diamonds (natural and artificial)

2.5 cubic boron nitride (CBN)

Three. According to the purpose:

3. 1 turning tool (used for excircle, end face, inner hole, groove, thread and copying processing of shaft, disk and other parts)

3.2 Milling cutter (used for machining plane, curved surface, groove and copying)

3.3 Hole cutter (used for processing through holes, flint holes, stepped holes and forming holes)

3.4 Thread cutter (used for processing internal thread and external thread)

3.5 Complex cutters (gear cutters, spline broaches, involute hobs)

3.6 Forming tools (used for machining forming surfaces, such as forming turning tools, milling cutters and broaches). , except the hob)

Four. By structure

4. 1? Welding type (butt welding, insert welding)

4.2 monolithic (monolithic high-speed steel, monolithic cemented carbide, monolithic ceramics)

4.3 Machine clip type (indexable structure)