- Angle grinder
An angle grinder is a handheld
power toolused for cutting, grinding and polishing.
Angle grinders can be powered by an
electric motor, petrol engineor compressed air. The motor drives a geared head at a right-angle on which is mounted an abrasivedisc that can be renewed when worn. Angle grinders typically have an adjustable guard and a side-handle for two-handed operation.
Angle grinders may be used both for removing excess material off a piece or simply cutting into a piece. There are myriad different kinds of discs that are used for various materials and tasks, such as cut-off discs (
diamond blade), abrasive grinding discs, grinding stones, sanding discs, wire brushwheels and polishingpads. The angle grinder has large bearings to counter side forces generated during cutting, unlike a power drill, where the force is axial.
Angle grinders are widely used in
metalworkingand construction, as well as in emergency rescues. They are commonly found in workshops, service garages and auto body repair shops. There is a large variety of angle grinders to choose from when trying to find the right one for the job. The most important factors in choosing the right grinder are the disc size and how powerful the motor is. Other factors include power source (pneumatic or electric), rpm's, and arbor size. Generally disc size and power increase together. Disc size is usually measured in inches. Common disc sizes for angle grinders include 4, 4.5, 5, 6, 7, 9 and 12 inches. Discs for pneumatic grinders also come much smaller. Pneumatic grinders are generally used for lighter duty jobs where more precisionis required. This is likely because pneumatic grinders can be small yet remain powerful, while it is harder for an electric grinder to maintain adequate power with smaller size. Electric grinders are more commonly used for larger, heavy duty jobs. There are also small electric grinders and large pneumatic grinders.
will greatly reduce the risk.
The angle grinder can be contrasted with other varieties of grinders; see
grinding machine, bench grinderand other diamond tools.
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