Insert drill bit DCT series

multi-purposecarbidecoated

In addition to standard drilling applications,the revolutionary self-clamping CHAMDRILL mechanism is an excellent solution for special drilling requirements. Pre-thread hole drilling is very popular in many industries. Available are drills designed for M8 to M24 ISO M standard pre-thread holes. The new DCT drills carry two standard chamfering inserts designated AOMT 060204-45DT IC508, symmetrically mounted and cutting forces are balanced for optimal performance. This feature is essential in through hole applications. Counter boring may be performed, however it is limited to a 6 mm depth. Unique Chamfering Inserts The AOMT 060204-45DT IC508 chamfering inserts were designed for chamfering and counter boring on a wide range of materials with optimal chip formation. The insert has an IC08 submicron substrate and is TiCN +TiN PVD coated. In order to be able to drill the pre-thread hole for the popular M8 thread size, a new 6.8 mm pocket was designed. This pocket can carry a range of drilling heads from 6.8 to 7.49 mm. Advantages Can be used on a wide range of workpiece materials. Can be used for blind, as well as through hole, applications. No vibrations during chamfering due to a balanced drill construction. 1.5 mm x 45º chamfer is possible when the recommended drilling conditions. Provides diametric versatility – CHAMDRILL is capable of using a range of drilling heads on each drill body. This provides a substantial advantage for users who change drills for the same tap operation. The user can use the same DCT drill for ISO M (coarse pitch thread) and for ISO MF (fine pitch thread).