Tungsten Needle with Holder
Tungsten needles have much finer tips. Needle 1 has a short blunt tip and is very sturdy; it is used mainly for scribing marks on metal surfaces. Needle 2 is not as sturdy as needle 1; it has a finer tip, used mainly for cutting particles from collodion. Needle 3 is very fine; it is used most frequently for single particle manipulation. Because the tip is rather fragile, it bends or breaks frequently. Many of these needles should be kept on hand since a few may be necessary to complete manipulation of a single particle. Not only are tungsten needles used for particle manipulation, but they can also be used when working with embryos and for glass blowing.
One needle is included with this Tungsten Needle Holder; please specify which needle size you prefer: #1, #2, or #3. You may purchase additional needles—see the links above.