Journal Pre-proof Simulative analyses focused on the changes in cutting ﬂuid supply of twist drills with a modiﬁed ﬂank face geometry Ekrem Oezkaya , Milan B ¨ ucker , Dirk Biermann PII: S0020-7403(19)34496-0 DOI: https://doi.org/10.1016/j.ijmecsci.2020.105650 Reference: MS 105650 To appear in: International Journal of Mechanical Sciences Received date: 26 November 2019 Revised date: 4 March 2020 Accepted date: 24 March 2020 Please cite this article as: Ekrem Oezkaya , Milan B ¨ ucker , Dirk Biermann , Simulative analyses fo- cused on the changes in cutting ﬂuid supply of twist drills with a modiﬁed ﬂank face geometry, Interna- tional Journal of Mechanical Sciences (2020), doi: https://doi.org/10.1016/j.ijmecsci.2020.105650 This is a PDF ﬁle of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the deﬁnitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its ﬁnal form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Elsevier Ltd. All rights reserved.