Grande Hatchet Trough Telescopio Astronomico Fotografico Fisso Uso Equatoriale
M6 and M7, M8 series are available. There is also a is 3/8 of a screw hole. Color: Silver. Length: 88mm. M6, a quarter of the pitch is: a group of 38 mm, a group of 60 mm. The pitch of the M8 is: 35 mm.