I bought these to replace the Jackson branded tuners on my Japanese Dinky DK2M and I'm not disappointed. These tuners are a perfect drop-in replacement for Jackson guitars and are extremely easy to install. The three higher string posts (G, B and high E) are recessed lower than the three other posts to allow for a nice, smooth angle between the nut and the tuner.
The craftsmanship on these is outstanding and they work exceedingly well once installed.