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A hole is bored with a single-point-cutting tool that feeds along the inside of the work piece.Lathe MachineThe lathe machine uses a single-point-cutting tool for a variety of tuing, facing, and drilling jobs. percent carbon, permits the operation of tools twice or three times the speeds allowable with carbon steel Cast AlloysCast-alloy cutting-tool materials containing cobalt, chromium, and tungsten are effective in cutting cast iron and retaining their cutting ability even when red hot.

The holes are more accurate in roundness, concentricity, and parallelism than drilled holes.Milling MachineThe milling machine uses a rotating cutting tool to cut flat surfaces, grooves, and shoulders, inclined surfaces, dovetails, and T-slots. Excess metal is removed by rotating the work piece over the fixed cutting tool to form straight or tapered cylindrical shapes, grooves, shoulders and screw threads.Move Closer To Financial Freedom!Best selling author of the megahits Nothing Down and Creating Wealth, shares the secret of success.

Rake angles are often provided on cutting tools to cause a wedging action in the formation of chips and to reduce friction and heat.Many industrial conces have workshops of their own. The rotating horizontal spindle to which the chuck is attached is usually driven at speeds that can be varied. Very often he has to supervise machinists. A drilling machine does drilling of holes.Inteal tuing known as boring results in the enlargement of an already existing hole.Drilling MachineThe drilling machine is used to cut holes in metal with a twist drill.Carbon SteelCarbon steel tools even though comparatively inexpensive tend to lose cutting ability at temperatures around 400 degree F (205 degree These are very hard.

It can also be power driven on straight paths parallel or perpendicular to the work axis. screw barrel Sulfurized mineral oil is one of the most popular coolants as it can both cool as well as lubricate. The latter chuck can be used to cut off-centered cylinders.