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Series 657 HSS-Co Straight Shank Jobber Drills TiN Coated - Metric Rigid, high heat resistant drill with large helix angle of 35°. Suited for titanium and titanium alloys, stainless steels and heat resisting austenitic steels. TiN coated gives greater wear resistance and longer tool life. Limited suitability for special alloys such as Hastelloy, Inconel, Nimonic etc. Manufactured to DIN338. Select from 77 Variants