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Obscure screw added so appliance cannot be disassembled
(lemmy.world)
Basic blender went bad (motor ran but spindle wasn't rotating). I wanted to disassemble to see if it could be repaired. Three of the four screws were Phillips head. I had to cut the casing open in order to discover why I couldn't unscrew the fourth. It was a slotted spanner.
That's a standard spanner-head screw. No welding required. The bits and drivers are not so hard to come by, or make.