This is a MUST have item on any cartridge type fork, air bleeding using the stock screw on the KTM EXC was a big PITA, so these bleeders were a must have item. The Turner bleeders are relatively inexpensive, well made, and installation a breeze.
Don't buy! The internal aluminum threads strip out way too easily. You cannot remove once installed because the bleeder will only dis-assemble...leaving the fitting in your fork with no way to put a wrench on it.