5PCS HSS Cobalt Step Drill Bit Set, designed for professional and DIY projects. This high-quality set includes 50 different hole sizes, replacing the need for multiple drill bits. Made from durable high-speed steel (HSS) with a cobalt coating, these bits ensure faster, smoother, and cooler cutting in steel, aluminum, copper, brass, stainless steel, plexiglass, wood, and laminates.

Upgrade your drilling experience with our 32mm Diamond Hole Saw Drill Core Bit, engineered for precision and durability. Whether you're working with marble, granite, tile ceramic, stone, or reinforced concrete, this tool ensures fast, stable, and clean cuts every time.

25MM Diamond Hole Saw Drill Bit, a high-performance core cutter designed for precise and smooth cutting through marble, granite, tile, ceramic, stone, rebar, and concrete. Built for durability and precision, this diamond-coated drill bit ensures fast cutting speeds, reduced material loss, and long-lasting performance.