VTF1109 Features: * Micro twist drill * Material: Tungsten vanadium * Highest concentricity provides breakage safety and long lifetime * Ideal for drilling metal, non-ferrous metals, plastic and wood * Work speeds: soft materials approx. 8,000 rpm, hard materials approx. 3,000 rpm * Shank size: 0.93" Dimensions: * Product weight: 0.2 lbs