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[Jim1611]

One of my first tool projects was a 5" sine bar. I made the bottom one most likely in 1980 and used it for over 15 years until one day when I took it out of my box to use and noticed the crack, black marker arrow. It's goes all the way through. As far as I know it was never dropped or abused but that sharp corner must have had some stress in it and so it cracked. My new one has a very generous radius in those corners and should outlast me. It's an old project but I felt like posting it anyway. There will be more to come! Another shop picture too.