28864 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. Number Of Bits: -3. Unit Material: -Steel. Use Material: -Wood/Metal. Product Type: -2 Cutter Drill Bits. Use: -Drill Bits. Generic Dimensions: -Overall dimensions: 0.39" H x 3.54" W x 3.14" D, 0.2 lbs. Dimensions: Overall Product Weight: -0.2 Pounds.