Na stronie producenta http://www.donau-elektronik.com/index_e.htm

- else similar as no. 1532
No. 1530 dia. 0.4-3.5 mm with threads M8 (for Proxxon)
No. 1531 dia. 0.4-3.5 mm with threads 280-40NS (for Dremel)

- else similar as no. 153
No. 1535 up to dia. 6 mm with threads M8 (for Proxxon)
No. 1536 up to dia. 6 mm with threads 280-40NS (for Dremel)

edit 24.01.2008 Sprawdziłem w swoim warsztacie. Mam podobny uchwyt, kupiony wiele lat temu w Conrad'zie i ma on gwint M8x1. Pasuje do miniwiertarki firmy Donau Hobby-Drill No. 0400