Sterile needles for drawing single samples or multiple samples into vacuum blood collection tubes. Ultra sharp point and unique coating reduces penetration and drag forces, minimizing patient discomfort. The special butt end penetrates stopper with 25% less force. The flow-through cannula design reduces possibility of hemolysis, thus reducing the number of redraws. The thin wall 21 gauge needle provides the same flow rate as the larger 20 gauge needle with less patient discomfort.