Walter has introduced the DC175 Supreme solid carbide drill with precision cooling, designed for machining ISO M (stainless steel) and S (super alloys) materials.
The DC175 uses a uniquely designed exit hole strategy to increased volume of coolant very close to the main cutting edge, which can significantly improve tool life. The DC175 Supreme drills can be used with emulsion or oil as coolant. The new point geometry features a tough, straight main cutting edge, a large clearance in the centre, and coolant channels positioned close to the cutting edge all features that are optimized for drilling of stainless steels or super alloy workpieces.
In addition to the cooling and geometry, Walter’s new WJ30RZ and WJ30RY grades also boost performance as their wear resistant TiAlSiN-based layer applied using HIPIMS coating technology takes the form of a complete coating for 3 and 5xDc (WJ30RZ grade) and a point coating for 8×Dc (WJ30RY grade). The 8×Dc version also features a polished flute for deep drilling. The result is a very smooth surface which ensures optimum chip evacuation and minimizes built-up edges. The ability to recondition the drills boosts cost effectiveness, as does the enhanced tool life.
The drill is available in dia. 0.118-0.787 in. (3–20 mm) 3 × Dc in accordance with DIN 6537 short, 5 × Dc in accordance with DIN 6537 long, 8 × Dc in accordance with Walter standard L/D ratios. Prime areas of application for the new drill are general metalworking, automotive, aeronautical, and the food and medical industries.