A handheld power tool called a die grinder is used for a variety of grinding, polishing, and shaping jobs. It is made for precision work and is frequently employed in metallurgy, woodworking, and other sectors where accurate material removal is necessary.

• Die grinders are frequently small and light, making them manageable. Both electric and pneumatic (air-powered) variants are offered.
• Pneumatic die grinders are more frequently used in industrial settings and are driven by compressed air, as opposed to electric die grinders, which are powered by electricity and have a cord.
• Die grinders work at extremely high speeds, frequently going above 20,000 RPM. Material removal may be done precisely and under control because of the fast rotation.
• Die grinders frequently contain a collet chuck that can be used to accommodate many kinds of grinding attachments, including burrs, abrasive wheels, grinding stones, and sanding drums. The collet mechanism makes switching tools quick and simple.