Smooth drilling in multiple diameters with one bit
For drilling

The machined spiral flute enables optimized chip removal and reduced vibration for uniform drilling.
High smoothness during cutting thanks to axial and radial relief grinding.
Made of HSS (high-speed steel) for greater durability. Laser markings for hole diameters.
Titanium coating for very long life. Laser markings indicate the drill diameter. 3-flat shank for high torque transmission.

The step drill bit is made of HSS (high-speed steel) and coated with TiN (titanium). It has a very long service life when used with coolant. Visible and durable hole diameter markings thanks to laser markings on both spiral flutes of the bit. In addition, the 3-flat shank prevents the bit from slipping in the chuck and also enables greater torque transmission to the drill tip.