Tivoli stepped cone drill for metal HSS, Ø6-37 mm.

6 / 9 / 12.5 / 15.2 / 18.6 / 20.4 / 22.5 / 26 / 28.3 / 30.5 / 34 / 37mm
Step drill for precise drilling of steel and plastic thanks to spiral cutting groove and self-centering sharpening.
The special “Tri-flat” shank allows for maximum torque transfer and prevents the drill from rotating in the chuck.
Adapted for drilling through holes.