Bosch BL4131 1/16″ Black Oxide Jobber (Bulk)

The 12 pc. set of 1/16 In. x 1-7/8 In. Fractional Jobber Black Oxide Drill Bits from Bosch offers exceptional performance and longevity for a variety of drilling tasks. Designed for use with materials such as steel, copper, aluminum, and even wood types like oak and maple, these drill bits feature a speed helix design that enables three times faster drilling compared to standard bits, significantly enhancing efficiency. The black oxide surface coating not only reduces heat during operation but also extends the life of the bit by ensuring that it lasts 50% longer than high-speed steel alternatives.