End cap for a pen
Quantity 1 I may ask for more parts at a later date.
Material - Stainless steel (whatever type is cheapest) . Tolerances, +- 0.5mm on the overall length +-0.1 on the 8.9mm diameter. Tolerances on the taper and radius are not particularly important as long as the diameter at the small end is 3mm +- 0.25 (and it looks like the drawing). Tolerance on 2.4mm hole diameter +- 0.15
All other tolerances +- 0.3. Surface finish either polished or left in a state that could be polished.