BOSCH Stepped HSS-TiN drill bits 6 - 39 mm, 10.0 mm, 93.5 mm 2.608.587.431

BOSCH HSS-TiN step drill bit is designed for drilling smooth holes of various diameters in thin materials. It handles non-ferrous metals, sheet metal, plastic panels and stainless steel without the need to change drill bits. Made from high-speed steel (HSS) for strength, the drill bit features a titanium nitride (TiN) coating to increase service life and cutting performance. Its design ensures clean, burr-free holes and reduces vibration during use.

Precise drilling without the effort

The design of the drill bit ensures maximum accuracy and smooth operation. The split point lets you start drilling immediately and precisely where you need to, without the need for pre-punching. Special axial and radial relief grinding provides cutting performance while minimising vibration. This results in clean, smooth, burr-free holes achieved with a single tool. The optimised flute shape also effectively removes chips from the drilling area.

Durability and practical use

The core of the drill bit consists of high-speed steel (HSS), with its properties further enhanced by a titanium nitride (TiN) coating. This combination ensures durability and long service life, especially when using coolant. For easy reference, the individual hole diameters are laser-marked directly inside both spiral flutes, so you always know the current size. The drill bit features a cylindrical shank with three flattened sides to prevent slipping in the chuck, contributing to safe and stable drilling.