Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2031555. 17mm socket to fit 17mm x 5mm nut, with 24mm outer nut and hollow 11mm diameter internal bore. Also has a 16mm x 2mm bore recess. This was used to remove a 1/4 turn ceramic tap valve and the recess is to clear a locking clip. The socket has a very thin wall because the nut was recessed and difficult to access (couldn't reach it with a regular socket set or box spanner). Surprisingly strong printed in PLA.