Son and I were changing shovels on the field cultivator and encountered a really stubborn bolt. Son's response was to tighten it until it twisted off. Seemed like an OK plan but those bolts are really tough. He was using both feet on the breaker bar as I was bracing the shank when the bolt finally let go. In one of those "I've never seen this happen before" moments, I saw the bolt rocket toward my face. It hit dead center on the bridge of my nose, skipped off the brow frame of my glasses, and continued another 5-6' before hitting the ground under the tractor drawbar. I said "OW". Son looked up and said "BLEEP". I pulled my glove off and reached up to find blood running off the end of my nose. Didn't hurt all that bad so we continued with the job until finished and headed for the house for lunch. At the house, I took a look and HOLY COW that left a much bigger mark than I'd expected.
So here's how this happened: those cultivator shovels are hard, springy steel. As the bolt tightened well past normal, the shank of the shovel was sprung toward the mounting and rebounded when the bolt broke. This rebound shot the bolt head and about 1" of the bolt shank like a bullet a distance of 3' +/- before striking my face & glasses plus another 5-6' after that impact.
I called it a lucky hit as lower might have hit my mouth and left/right would have impacted directly on the non-safety prescription glass lenses. There are just so many weird things that can happen that one can't foresee.
So here's how this happened: those cultivator shovels are hard, springy steel. As the bolt tightened well past normal, the shank of the shovel was sprung toward the mounting and rebounded when the bolt broke. This rebound shot the bolt head and about 1" of the bolt shank like a bullet a distance of 3' +/- before striking my face & glasses plus another 5-6' after that impact.
I called it a lucky hit as lower might have hit my mouth and left/right would have impacted directly on the non-safety prescription glass lenses. There are just so many weird things that can happen that one can't foresee.