Juego de 5 tornillos para agujeros, acero de alta calidad, sierra de corona, brocas, sierra de corona para chapa metálica (16+18,5+20+25+30 mm), para taladrar metal y madera.

Outer diameters: 16 mm (5/8 inch), 18.5 mm (3/4 inch), 20 mm (4/5 inch), 25 mm (1 inch), 30 mm (1-3/16 inch). This hole saw set includes 5 sizes to meet your professional needs. Premium materials: Made of high-quality HHS high-speed steel, durable, high hardness, fast sawing speed, impact resistant, and heat resistant. Sharp gears and a cutting-resistant design, combined with low energy consumption, result in a longer service life. Suitable for drilling holes in thick steel plates, cast iron, stainless steel, non-standard angle profiles, and other metals. Ideal for installing door locks and handles, or drilling large-diameter holes in objects such as tables. Compatible with hand drills, vertical drills, and portable belt drills. Cuts stainless steel, thin sheet metal, cast iron, low carbon steel, aluminum, plastics, copper, and brass quickly and accurately.