Set of diamond corona sierras, diameter 6-50 mm, adjustable stone broca, corona sierra with high precision ventilation with points for glass, marble, tiles, ceramic, PVC

< p> Diamond corona range: 10 sizes available to satisfy various needs. Includes 6 mm, 8 mm, 10 mm, 12 mm, 20 mm, 25 mm, 30 mm, 35 mm, 40 mm and 50 mm. Made from high-strength carbon steel, these diamond brocas are durable. Easy to use: high-caliber diamond crowns increase the perforation speed and allow smooth cutting in seconds without doubling the edges. Vent: Thanks to the adjustable broca guide with vent, the maximum opening length of the placa is 3-1/4 inches, sufficient for crown mountains of all tamaños. Special design: the large openings of the broca facilitate the penetration of refrigeration water and the elimination of viruses and other particles. This guarantees smooth perforation and simplifies the process. Adjustable corona sierra guide: Adjustable corona sierra guide with ventosa. Compatible with pins up to 8.9 cm in diameter. Rodamiento de bolas extractible; back mounting modes (3 or 4 rods); simply turn the plate.