Because the spinning motion produces friction which causes it to heat up!
Normally with a chuck key.
Friction caused the temperature of the recently used drill bit to feel hot to the touch.
Friction. When the drill bit is doing its job, cutting the material causes heat and so does the contact of the flue against the walls of the hole.
Use a brand-new bit for metal mounted on a hand drill (not electric). Slowly rotate the bit in the lead, which is a "soft" metal.
An electric drill has a small electric motor inside, driving a series of gears. The power from the gears turn a chuck, which holds the bit placed into it thereby drilling a hole.
She made Holloweenles!
An SDS hammer drill is an electric drill that hammers the drill bit in and out slightly as it drills with it. This type of drill is mainly used to make holes in concrete or masonry, and is able to do so easier than a regular drill and bit are.
She made Holloweenles!
The rotating action of the drill bit makes the hole.
To provide the functions of a drill, and the portability and versatility of an electric power tool. Pneumatic drills are nice, but you're a bit restricted by having to keep within the radius of an air hose.
To provide the functions of a drill, and the portability and versatility of an electric power tool. Pneumatic drills are nice, but you're a bit restricted by having to keep within the radius of an air hose.
Because the friction of drilling heats it up.