Cutting tools are devices, which are held by hand when cutting through different materials. There is no industry, big or small, that does not use one cutting tool or the other. Only difference is the kind of work the types of cutting tools do. Currently, there are hundreds of cutting materials out there, some used on our day-to-day activities while others not so much.
For different types of cutting tools to be useful in their function, they must be harder than the tool being cut and the tool or material being cut, must also have the ability to take the heat brought about by the friction caused in the cutting process. The tool/material being cut must also have a certain design of geometrical clearance angles so that the surface on which the material is placed on will not be subjected to the cut, when the tool is getting cut. That is not all other things that should also be optimized for the cutting tool to function properly are the flute number and width plus the size of the margin and the cutting face angle. Below are some of the most common cutting tools and their functions:
Some of the Types of Cutting Tools
- Tool Bits: Also known as single-point, this is the kind of tool used in planers, metal lathes and shapers. They are made with cutting edges suitable to cut specific machinery, and they can also be sharpened and reshaped as one would like to have it. Initially, the tool bits were made of steel of high carbon. But as time went by, the steel was replaced by ceramics and carbides, which are brittle and more expensive as compared to steel.
- Broaches: They are tools that have teeth, which are used in the removal of a material. They have a similar shape to that of a saw only difference is the teeth increase in height over the tools length. Also, it has got three sections, which are different from each other: semi-finishing section, roughing section and finishing section. Broaches can be categorized into different types all depending on their use, purpose, motion, construction or function. For instance, surface or internal use, combined or single purpose, stationary/push or pull motion, hollow/solid/shell or built up construction or even sizing, burnishing or roughing function.
- Drill Bits: They are the cutting tools, which are used when one would like to have a cylindrical hole. The bits are used along with the drill to be able to function well and, unlike some tools, the drill bits have standard sizes. They have been coated with several materials for them to last long and be able to function properly. The materials are: Black oxide for lubricity and also resistance to heat, Titanium nitride which adds to the drill bit’s cutting life twice or thrice, Titanium Aluminum nitride which is also used in the extension of the tool’s life, Diamond powder which functions as abrasive, Zirconium nitride and also Titanium carbon nitride.
- Countersink: It is a tool used when one would like to cut a manufactured object so that it would have a hole, which is conical. It has also got the use of removing burrs which are left when a tapping or drilling operation is complete thus creating a smooth finish.
There are so many types of cutting tools out there like the reamers, counterbores, Poulan chainsaw, cold saws, fly clutters, hacksaws, milling cutters as well as taps and dies. All you have to know is which types of cutting tools are used and where, and you will be good to go.