New Dimensions In Deep-Hole Drilling

Walter is expanding its range of X‧treme Evo drills up to 30 × D.

With the X·treme Evo solid carbide drills from the DC160 Advance range of drills, Walter is forging a link to the "next generation of drilling". By introducing lengths of 16 to 30 × D, the tool manufacturer its expanding its range to now include deep-hole drilling. As the successor to the Alpha 4XD drills which have been established on the market for a long time now, the DC160 Advance, like its predecessor, makes deep-hole drilling possible in a single operation without pecking – and therefore boasts the advantages of XD Technology. The coating and geometry have been optimised. Just like the existing versions of the DC160 Advance, the deep-hole drills also feature the innovative new thinner web with 140° point angle and the fourth land in an advanced position. The former ensures increased positioning accuracy and reduced cutting forces in the centre, while the latter optimises the guidance of the drill.

The grades of the drills (WJ30ET and WJ30EU) are another new addition. These comprise the K30F fine-grained substrate and a TiSiAlCrN/AlTiN multi-layer coating (as a point or complete coating). The layer structure makes the drills both tough and wear-resistant and plays a crucial part in the process reliability and performance of the DC160 Advance drills. Polished flutes from 8 × Dc also optimise chip evacuation. Typical application areas of the drills, which are available with or without (internal) cooling, include general mechanical engineering, mould and die making, and the energy and automotive industries. Walter offers intermediate sizes and special dimensions via its Xpress service with faster delivery times.