Conical hand-reamer 1:20 various sizes

[marccromme]

I'd like to find a tools seller in Europe where I can get various conical hand-reamers 1:20 to be used for small & large bore trombone receivers and possibly American/European tuba receivers. I know the German company Boehm, but there one of the larger reamers costs a fortune. I suspect I could get a much better price at an internet selling machine tools shop, but have hard times to find 1:20 reamers (Morse and 1:50 is easy). Maybe I may tap at the knowledge of this fine forum to locate a seller?

[chhite]

Josef Boehm tools in Germany http://www.boehmtools.de/uploads/media/ ... hpipes.pdf" target="_blank

[marccromme]

Yes, that is the one I know about - and tool 106 - the tuba reamer . is 179,00 Euro plus shipment - http://www.boehmtools.de/uploads/media/ ... e_2016.pdf" target="_blank" target="_blank

Since an american tuba shank is almost 1:20 in taper, and has the measurements - left inch, right mm

Code: Select all

Shank   Receiver    Bottom   Conus 1:xx   Shank   Receiver    Bottom
1.1250   0.575        0.519      20.089           28.58    14.61          13.18

I thought I could find a cheaper standard 1:20 reamer to do the job ??

For example a Jarno taper #5 ??

Code: Select all

         Large end    Small end    Length 
#5     0.625            0.500           2.500 

Do anybody know a place to order these cheaper than the specialized Boehm tools ??

[marccromme]

I found these - but they are too small in diameter

http://www.sppw.de/download/pdf/114740.pdf" target="_blank
Kegel-Maschinenreibahlen aus HSS-E05
HSS-E05 Conical Machine Reamers
Steigung 1:20