Inside tapered bore tolerance: +/- 0.05mm
Outside diameter tolerance: +/- 0.009mm
Aluminum or brass is fine, whatever is easiest to achieve tolerances. Drawing correctly shows required M5 x 0.8 thread. One feature not pictured or in the attached model is a chamfer on the outside diameter on the threaded end (adapter fits into 12mm bore).
I need a a prototype and quote for 25, 50, 100 pieces. Shipping to Canada required.