一般在高精密深孔钻的加工中，要维持高精度与表面高质量是有一定的困难度。而BECHEM Avantin 3309在此领域里又立下一个新的标杆。
知名工业大厂采用AVANTIN3309和Botek开发的单刃枪钻（硬质钢车削系统）的组合做生产加工，刀具寿命与竞争对手相比提高了30倍。
尽管加工条件严苛，在不额外添加任何添加剂的情况下，使用液依然可达超过15个月的使用寿命。
适用材料包括1.4541、1.4571、1.4404、1.2316以及含镍合金等。
BECHEM Avantin 3309 - A best-seller for deep drilling
The production of precise bore holes with high repeat accuracy and excellent surfaces is often a difficult processing operation. With BECHEM Avantin 3309, we are again setting a new benchmark for the world of drilling. A leading user from the industrial chemistry sector has achieved extended tool life around 30 times higher than competitors in their production of plant and system components thanks to botek single flute gundrills (soldered carbide cutting and turning plate systems). Despite the difficult conditions, a cooling lubricant service life of more than 15 months has been attained without requiring the use of additives. The materials used (1.4541, 1.4571, 1.4404 and 1.2316 as well as nickel-based alloys) were able to be processed reliably.