Becton Dickinson Ultra-Fine 33 Gauge Lancet are the thinnest lancets available, which means that you'll experience less pain when taking a blood sample. Thinnest lancet available - just 33 gauge - which means less pain when you test. For added flexibility, the BD Lancet Device andBD Latitude Lancet Device allow you to modify the depth setting to match your skin type. 50% less pain. Thinnest lancets Available. Easy to use.