The TWIST Interchangeable Needle Tips by ChiaoGoo are of premium quality. Their tips are pointy (without being too pointy), straight, and smooth. The size is laser printed on the side, saving you from searching for your needle gauge again.
 
Combined with the famous Red Cables by ChiaoGoo, these needles are precise and fast, a pleasure to knit with.
 
Please note that sizes up to 2.5 mm are compatible with the Mini cables; sizes from 2.75 mm to 5 mm are compatible with the Small cables; sizes 5.5 mm and beyond are compatible with the Large cables. All ChiaoGoo cables can be found here.