Bosch 4-Piece Twist Drill Bit Set for Multi-Material, 120mm Max, 85mm Min, Steel Bits

The Bosch CYL-9 is a multi-construction drill bit that delivers stable drilling in all kinds of materials. The drill bit is intended to work practically with all materials in interior fitting work, e.g. soft concrete, masonry, brick, cement asbestos, light building materials, multilayer materials, ceramics and tiles, wood, plastic, sheet metals and aluminium.

Centring tip provides a steady drilling start and good guidance universally
Diameter-optimised AWB brazing and hardening technology increases robustness and reduces vibration during use
4-flute dura design with a reinforced core section delivers better wear resistance and stability when drilling in soft concrete