Solid Carbide HPC Deep Hole Drill, 16XD, TiAlN Coated, 2.4 mm

Spiral fluted, with 4 guide chamfers and internal cooling channels. New generation of high performance deep hole drills in the HPC range. With 135 Deg point angle and special h7 cutting edge tolerance for optimum generation of a deep hole. High roundness and alignment accuracy of the deep hole. Note: Flute length LC = L2 + 1.5 x DC. For process reliability when using the 16xD deep hole drill, an initial Center drilling with No. 121068 - 121121 or 4xD pilot drilling operation with pilot drill No. 122736 is necessary. For deep holes greater than 20xD, a pilot hole to the maximum drilling depth with pilot drill No. 122736 is absolutely essential. The generation of a pilot hole improves process reliability.