These needle sets are manufactured to strict standards providing assurance of perfectly “matched bevels”. They incorporate type 304 stainless steel needles and stylets (obturators) to assure needle point strength, sharpness, and integrity of point geometry. The nickel plated brass hubs and stylet caps have matching serial numbers to facilitate matching after cleaning or sterilization. The point of the needle is aligned with the flat of the hub. The hub slot and cap guide are aligned with the point of the needle for easier orientation.