The Wera 848 HSS Metal Twist Drill Bit in 6.8mm is the preferred size for M8 tapping preparation, making it an essential addition to any metalworker's or engineer's bit set. The split point tip provides immediate, accurate bite on the workpiece surface, producing a clean hole perfectly sized for subsequent thread cutting. Engineered from high speed steel with finely-tuned material elasticity, the bit handles the increased torque demands of larger-diameter drilling without sacrificing precision or longevity. Viscous tempering throughout the body ensures the cutting edges remain effective over a long service life. The ¼" hex shank interfaces securely with DIN ISO 1173-D 6.3 compatible holders for confident, efficient power transmission. Features and Benefits: • HSS with split point — ideal for M8 tapping preparation • Finely-tuned elasticity manages torsional stress for longer life • Viscous-tempered for toughness and sustained edge performance • ¼" hex shank for secure, positive engagement with quick-release holders • Excellent concentricity ensures accurate, consistent hole sizing Contents: 848 HSS Metal Twist Drill Bits, 6.8 x 50mm Specifications: Diameter: 6.8mm Overall Length: 50mm Drive: ¼" Hex (DIN ISO 1173-D 6.3)