Part of the DC160 Advance range of drills – the successor to Walter’s Alpha 4XD drills – the new drills have optimised coating and geometry. They also feature a new thinner web with a 140°point angle, and the fourth land is in an ‘advanced position’. The former ensures increased positioning accuracy and reduced centralised cutting forces; the latter optimises drill guidance. Also, polished flutes optimise chip evacuation.

The grades of the drills (WJ30ET and WJ30EU) are also new. These comprise the K30F fine-grained substrate and a TiSiAlCrN/AlTiN multi-layer coating (as a point or as a complete coating). The layer structure makes the drills both tough and wear-resistant, as well as playing a crucial role in process reliability and performance.

Walter offers the drills in intermediate sizes and in special dimensions, on request, via its fast-delivery Xpress service.

For turning, the new CBN indexable insert grades for ISO H and ISO K materials are WBK20 for finishing cast iron and WBK30 for high metal removal rates in ISO H and for finishing with a heavily interrupted cut. Both grades are also suitable for roughing and finishing sintered steel.

The WBK20 indexable inserts feature CBN ‘tips’ to each corner, while WBK30 is a solid CBN substrate to permit higher cutting speeds than carbide inserts. In addition, a microgeometry on the cutting edge also contributes to the insert’s high quality, productivity and process reliability.

Walter offers the new grades in all of the most popular ISO sizes and radii.

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