Twist drill bits: General-purpose drilling tools suitable for materials such as metal, wood, and plastic; commonly made of high-speed steel (HSS) or cobalt-bearing alloys.
Wood drill bits: Designed specifically for wood; feature a pilot tip at the front to ensure smooth cutting and minimize wood splitting.
Masonry drill bits: Feature carbide (tungsten carbide) tips for impact resistance; used for drilling into concrete and brick walls.
Diamond thin-wall core bits: Used for vibration-free, crack-free hole cutting in brittle materials like tile, glass, and stone; often used with water cooling.
Glass drill bits: Small-diameter bits designed for low-speed drilling on glass and ceramic surfaces.
Hole saws/cutters: Used to cut large-diameter circular holes in wood, drywall, or thin metal; common types include step drills and hole saws.
