Fast, clean drilling: engineered grooves and cutting geometry remove chips and debris quickly to reduce clogging. Faster chip evacuation improves drilling speed and keeps holes clean for more accurate results. Wide compatibility: works reliably on wood, plastic, metals, fiberboard and aluminum screws, making the set useful across home improvement, workshop and light industrial tasks. Durable construction for long life: key components are made from ABS, 40 steel and high-speed steel (HSS). This combination delivers good bending strength and wear resistance so bits hold shape and cutting performance over time. Precise depth control: adjustable depth stop lets you set and repeat exact depths for countersinking and through-holes. Useful when installing hardware or preventing over-drilling in thin materials. Practical performance features: designed to reduce binding, improve hole quality, and maintain consistent drilling accuracy across a range of materials. Common applications Cabinet and furniture installation: drill consistent pilot holes and countersinks for screws in wood and fiberboard so hardware sits flush. Metal and plastic fabrication: create clean starter holes in thin sheet metal and plastic parts before tapping or fastening. General repair and DIY: faster drilling and reliable depth control for tasks like mounting brackets, installing fixtures, and assembling components. What you get A versatile drill bit set built for efficient chip removal, compatibility with multiple materials, durable ABS/40 steel/HSS construction, and an adjustable depth stop for repeatable, precise drilling.