I bought this off Evil-Bay. He is selling these for Boxters but the 914-4 lug is a 14mm also. $12 to the door. It is aluminum not brass like the ones others are selling for $29. It has two O-rings for griping. I stuck it in a rear hub for demonstration purposes. Screw it in and let it hold the weight of the wheel while you line up the bolts.

link?

I make a similar one. I gave a bunch away at the FFC. I make them in Stainless Steel $10.00 if anyone is interested.