Please note: Currently we have ONE! "open box" AT8008 complete cartridge with needle in mint condition. We have found no wear on the tip under our stylus microscope.
Cartridge kit includes:
1/2inch mount adaptor
stylus cleaner brush
screwdriver
mounting hardware (screws)
display case & instructions/box.

You may also find fluid here for the stylus cleaner brush.
The Audio Studio reference series Pmount cartridges are among the finest ever made for mass production. Sadly the production must not have been very massive as they are impossible to find anymore. The styli for the 6006 and the 8008 are totally obsolete. As of this writing the closest still available is the 213-LC-copy which is a generic version of the ATS8008 stylus for this AT8008 cartridge.

Specs for this lineup:

3003 (AT3003)
Freq Response 15-27kHz
Output 5.0mV
Chan. Sep @1kHz 29dB
Chan. Sep @10kHz 18dB
Chan Bal. 1.25
Tracking Force 1-1.5g
Stylus Shape: .3x.7mil 'BiRadial' (elliptical)
Cantilever: Thin-wall tube

6006(AT6006)
Freq Response 10-28kHz
Output 5.0mV
Chan. Sep @1kHz 29dB
Chan. Sep @10kHz 20dB
Chan Bal. 1.0 dB
Tracking Force 1-1.5g
Stylus Shape: .3x.7mil NUDE 'BiRadial' (elliptical) OBSOLETE (see below)
Cantilever: Thin-wall tube

8008 (AT8008, AT331LT,AT331LP)
Freq Response 5-30kHz
Output 5.0mV
Chan. Sep @1kHz 31dB
Chan. Sep @10kHz 21dB
Chan Bal. 1.0 dB
Tracking Force 1-1.5g
Stylus Shape: Linear Contact OBSOLETE (see below)
Cantilever: Tapered Alloy tube