Doing work on multi layer conveyor systems accessing control panels. Lost the bit and and lost my backup didn't have another backup other than a screwdriver which I resorted to. Bits fell 5 stories never to be seen gain. The slightest bump on the chuck ejects the bit - Very poor design.
I'm committed to the unit - too late to return it. So I have electrical tape wrapped several time around the chuck forced in between the chuck and unit to keep chuck from moving. Sure hope I don't have to replace the bit or bit holder