HSS Drill Bit (Metric):18mm - DIN 338/Taper Shank

This HSS drill bit features an 18mm nominal diameter and a taper shank, manufactured from high-speed steel to ensure durability during machining operations. It is engineered to conform to the DIN 338 standard, which defines its geometric specifications and tolerance limits for reliable performance. The taper shank design allows for secure clamping in machine tool spindles, providing greater rigidity and torque transmission compared to straight shank alternatives. Buyers select this specific diameter when precise 18mm holes are required in metal workpieces, relying on the hardness of high-speed steel to maintain cutting efficiency. Choose this bit based on the required hole size of 18mm and the need for a taper shank connection compatible with your equipment.