Solid carbide HPC deep-hole drill plain shank DIN 6535 HA 20×D DLC
Article no.:
123590
- Tool material: Solid carbide
- Version: 20×D
- Point angle: 135 °
- Shank: DIN 6535 HA to h6
- Through-coolant: yes, with 40 bar
Description
Version:
Spiral fluted, with 6 guide chamfers and internal cooling channels. New generation of high performance deep hole drills in the HPC range. With 135° 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 × DC.
For process reliability when using the 16×D deep hole drill, an initial centre drilling with No. 121068 – 121121 or 4×D pilot drilling operation with pilot drill No. 122606 is necessary. For deep holes greater than 20×D, a pilot hole to the maximum drilling depth with pilot drill No. 122606 is absolutely essential.
The generation of a pilot hole improves process reliability. See also pages 134/135.
For process reliability when using the 16×D deep hole drill, an initial centre drilling with No. 121068 – 121121 or 4×D pilot drilling operation with pilot drill No. 122606 is necessary. For deep holes greater than 20×D, a pilot hole to the maximum drilling depth with pilot drill No. 122606 is absolutely essential.
The generation of a pilot hole improves process reliability. See also pages 134/135.