Before You Buy a New Core Drill Bit, Watch This

Can you sharpen a worn Bosch 79mm core drill bit with nothing more than a small 4mm file? In this video I put that idea to the test. Rather than replacing an expensive core drill bit, I show how I carefully sharpen the cutting teeth using a simple hand file and compare the results. This isn’t a manufacturer’s recommended method—it’s simply a practical workshop experiment from someone who hates throwing away tools that still have life left in them. You’ll see: • The condition of the core drill before sharpening • How I sharpen each tooth with a 4mm file • Tips for keeping the cutting edge consistent • The finished result • Whether it’s worth the effort or not As always, this channel is about making the most of what you’ve got, repairing instead of replacing, and learning by doing. Have you ever sharpened a core drill bit yourself? Let me know your experiences in the comments. #Bosch #CoreDrill #ToolRestoration #DIYWorkshop #ToolTips #Sharpening #LearningByDoing #WorkshopProjects #UselessToUseful #DIY Thanks for watching Useless to Useful