The THUNDERWEB drill has a tapered barrel to provide better resistance to torsion and speeds up the Quick Chip Removal, High Wear Resistance, to warm up, the geometry THUNDERWEB makes the quick chip removal, it reduces friction = less overheating and wear, progression of top in deep holes, Double Blades Sharp to speed up the drill holes effortlessly pressure, can be used for long time for quick holes even in the attack, stainless steel autocentrage and score precise movement; accurate and progressive, ideal on curved surfaces, less efforts and pressure, excellent in very hard materials such as stainless steel.