I have never bought anything from Element14 that was shoddy or bad, until now!
Welcome to the SOLDER SUCKER from hell.
I have marked the bad bits, A and B.
The A bit, the bit that you unscrew to remove cold solder, removes itself, usually in the middle of a suck.
The other bit, marked B, the bit that you take of when the piston gets jammed with cold solder, also removes itself, usually while I have my glasses in one hand, a wire in my mouth, solder in the other hand, and a 40 pin chip hanging precariously off my strip board.
Element14, you have done yourselfe a disservice, and whoever the idiot was that purchased this product for your company, should take up a hobby, like ELECTRONICS
Peter Taylor