Walter Tools is completing its D4120 product range. With dimensions of 2, 3, 4 and 5 × D, the Tübingen-based company offers a wide range spanning diameters from 13.5 to 59 mm. Specially developed outer and centre inserts ensure precise balancing of the cutting forces. To this end, centre inserts slightly larger than the outer indexable inserts were selected and equipped with a corner protection chamfer. Besides greater process reliability, this plays a crucial part in increased precision and minimal drilling noise. Walter offers a version with wiper edge for high surface finish quality. The drilling body features two coolant-through channels and a measuring collar (Dc) for easy drill identification, even when assembled. Polished flutes and a hardened surface optimise chip evacuation and wear resistance.
The combination of D4120 and four-edged indexable inserts offers users cost-efficiency advantages and the greatest possible flexibility thanks to a coordinated system. This is of interest to users, both in the case of difficult machining operations, such as cross holes, chain drilling and inclined inlets and exits, and because these drills can be used in ISO materials P, K, M, N and S. Users in general mechanical engineering, mould and die making, and the energy and automotive industries could therefore benefit from outstanding precision in the hole diameter, a high degree of process reliability and cost-efficiency. Alongside the standard dimensions, Walter also offers the D4120 in special dimensions via Walter Xpress with faster delivery times.
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