Features: Precise drilling without deviating from the path, special side edges of the blade allow for cutting a round hole with a specific diameter and smooth edges (Ø from 5 mm). Abrasion-resistant, positioned outside the clamping area for permanent readability (from Ø 5 mm). The core diameter of the drill bit decreases towards the shank, which ensures maximum breakage safety, especially when drilling by hand (Ø from 5 mm). The three milled clamping surfaces prevent the drill bit from twisting in the chuck and enable optimal power transmission. Description: Four times faster and up to 50% more break-resistant than standard drill bits. Round holes with nearly burr-free edges. Starts immediately after setting – no punching required. Made from cobalt alloy and high-performance HSS (5% cobalt), temperature and wear-resistant. Application: For drilling in slightly splintering materials, carbon steels, alloyed steels, and cast iron with a strength of up to 1100 N/mm², stainless and acid-resistant steels (V2A, V4A, Nir), heat-resistant steels (containing chromium, cobalt, molybdenum, nickel, tungsten). Designed for: Drilling machines (mains and battery-operated).