This is a tool with a rotating drill bit used for drilling holes in various materials. Drills are commonly used in woodwork and metalwork. The drill bit is gripped by a chuck at one end of the drill, and is pressed against the target material and rotated at speed. The tip of the drill bit does the work of cutting into the target material, slicing off thin shavings (twist drills or auger bits) or grinding off small particles (oil drilling).
Types Of Drills:
Hammer Drill: This is similar to a standard electric drill, with the exception that it is provided with a powerful hammer action for drilling masonry. The hammer action may be engaged or disengaged as required.
Rotary Hammer Drill: This is an electric View the rest of this article
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