Metcal precision te dispensing needles packs of 50 metcal 922050 te a 22 gauge dispensing needle tip from the metcal te series the needle tip consists of a stainless steel cannula with a double helix polypropylene hubthis premier quality dispensing needle is burr free with an electro polished cannula for unobstructed and consistent material flow metcal 922050 te precision te needle 22 gauge x 12 blue pack of 50