Suitable for steel and cast iron drilling, CoroDrill 870 can be tailored to optimize applications through diameter range, steps, and length possibilities. Cutting edge geometries and grades provide safe cutting process, maximizing penetration rates while maintaining chip control. Grade GC2234 includes fine-grained high chromium substrate and thin AITiN PVD coating for chip resistance. Available in diameter range of 0.394–1.049 in., drill achieves hole tolerances of H9–H10.
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