The Hahn Implant system is compatible with the NobelActive Kerator product line. Hahn's instrumentation guide, specifically mentions the Nobel Active drivers, as you can see here: https://cdn.shopify.com/s/files/1/1616/9759/files/dental-implants-hahn-tapered-implant-instrumentation-guide.pdf The only thing to be aware of is that the Hahn Implant system groups the 4.3 platform with the 3.5 platform, while NobelActive groups the 4.3 with the 5.0. So effectively, for the Hahn platform you would choose the correct Kerator as follows: Hahn 3.0: Use KER-NA30 Hahn 3.5/4.3: Use KER-NA35 Hahn 5.0: Use KER-NA43 Of course, after you choose the platform, you need to then select your tissue height to get the correct Kerator for your specific case.