Deeply the suffering processed item which is produced the hole drill tool, drill method and making use of the hole drill tool deeply

摘要

Topic The suffering processed item which formed two parallel holes with high accuracy and simple method is offered.SolutionsSuffering processed item 5 has the parallel hole with the auxiliary hole 7 4. The auxiliary hole 7 is formed, paralleling to auxiliary drill axis 71, the parallel hole 4 is formed, paralleling to drill axis 41. Both axes extend mutually parallel. Selective figure Figure 1