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Angle grinder cutting disc close call.
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Previously:
Grinder cutting disc shoots into man's stomach - GIF
How cutting discs are made - GIF
Zip cuts are no joke, but I think this one might have been staged to scare the new guys. This doesn't look like how zip cuts normally fail, and I think the half that's left in the grinder would have been launched too. It looks somebody put a zip cut on the corner of a table, broke it in half in a straight line, then put one half in a grinder.
Don't get me wrong, that giving new guys "the talk" is one of the first things I do. You need to give new people a respect for the tools and the machinery. But I think this might have been a staged safety demonstration.
I agree with the staged concept. also face shields are not safety glasses
Two different sized discs...
Agreed. No chipping or fragging of the disc like there would be if it broke while grinding. The edges of the fracture would have bit into the workpiece and chipped it up. Also, no chipping at the entry point of the face shield either. Just a nice clean slit.
Back in 1972, I worked at a factory, that made Ball Bearing RACES.
At the Sign In Clock, the usual "info board" for notices, and Days without Accidents.
On that poster, was a set of (real) SAFETY GLASSES, of which one lenses STILL had the "OBJECT" that the lense STOPPED, yet WAS penetrated, by a piece of 10 Gauge Steel.
LATER, I worked in "Contractors Lumber Yard", during slack time the BOSS & I would cut up 1×2 & 2×2 Stakes, for forms, etc. One day the bosses Aluminum Hard Hat, (full rim, not the hard ball cap style) FELL off his head, Hit the 10 inch saw blade, WAS TOSSED (right past ME), and flew 25 feet. The Boss turned OFF the saw, calmly walked over, returning that SAFETY hard hat, to His Head, returned & fired up the saw, right BACK to WORK.bHe later agreed He COULD get a new hat BUT wearing That One was a REMINDER... That gash let in LOTS of Washington Rain....
I have seen MORE accidents since those First two, & EVERYONE of them a Constant reminder to Viligence.
I do not care for the particular video shown, I have no desire to Yay or Nay its TRUTHFULLNESS, the point was made:
BE AWARE, that ALL high speed Spinning objects are ALWAYS capable of ~bad things~.
I use Dremel Style 1 inch cut off disks, as well as there Larger "Fiber Reinforced" variety. THEY all EXPLODE. Regardless HOW careful I am.
So, Safety Glasses, PLUS a face shield, during my hours using those abrasive disks (and my 4" *LARGE* Disks.
Philip, from the Great Pacific NorthWET, Oregon Division, USA