Walter GB New deep-hole drills and CBN inserts for ISO K and H

Editor: Steffen Donath

Walter GB has announced additions to two product ranges that will generate benefits in both deep-hole drilling and turning.

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Walter’s new deep-hole X·treme Evo drills.
Walter’s new deep-hole X·treme Evo drills.
(Source: Walter)

Its solid carbide Xtreme Evo drills now extends to capacities of 16 to 30 times diameter and offer deep-hole drilling without the need for pecking; and new CBN insert grades for the cost-effective machining of ISO K and H materials complete the company’s extensive CBN turning range.

Part of the DC160 Advance range of drills, the new drills have optimised coating and geometry. They also feature an innovative 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.

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