Designed for drilling in wood Highly efficient for carpenters and woodworkers: Precision Hex shank for a strong connection and maximum torque transmission in three-jaw chucks and ¼" internal hex tool holders For drilling in all types of hardwood and softwood, including wet wood, eg when drilling through holes in thick wood for pipes and cables Scope of delivery: Bosch PRO Wood Auger Bit, 24 x 170 x 235 mm, Weight: 0.7275254646 pounds, Manufacturer: Bosch