With the Drivox·tec solid-carbide drill DD170 Supreme, Walter says it has launched a new ‘hole-making icon’ to the market. Like its predecessor, the DC170 Supreme, the new DD170 Supreme has also been designed as a problem solver.

Suitable for hole-making in steel and cast iron workpieces, the Drivox·tec solid-carbide drill DD170 introduces technical improvements that Walter reports are currently unique. The primary improvement is the new Krato·tec multi-layer coating. Walter has already introduced this in other drill families to deliver tool life improvements in the region of 50% or more, depending upon the specific application.

The revised point geometry of the solid-carbide Drivox·tec DD170 Supreme hole-making series has an equally positive effect. Incorporating a larger clearance angle on the internal side than on the external side with a raised drill point, the DD170 Supreme improves positioning accuracy. Furthermore, these geometry advances reduce axial forces and increase hole quality, precision and machining performance, says Walter. 

The patented groove design has also seen optimisation. With a flatter entry point, the drill improves process stability, especially when machining soft materials like mild steel, as it minimises material sticking and improves swarf evacuation. In addition to optimising the cutting profile, Walter has also increased the number of flutes. With 12 grooves instead of eight, the DD170 Supreme can now be reground more frequently. This increases both the service life and sustainability of the solid-carbide drill bit.

According to Walter, the new range demonstrates high process reliability in demanding applications such as cross holes and inclined exits. This is credit to the high wear protection of the Krato·tec coating, which makes the DD170 Supreme the new benchmark for high-performance solid-carbide drilling.

More information www.walter-tools.com