Features Made of high quality alloy steel, high hardness and durability. There are 15 pieces of many different sizes in a set. They are great for most drilling jobs and materials processing. Incisive twisted drill bits will make the drilling easier and more effortless. A good helper for metal processing. Features: 1. Made of high quality alloy steel, high hardness and durability. 2. There are 15 pieces of many different sizes in a set. 3. They are great for most drilling jobs and materials processing. 4. Incisive twisted drill bits will make the drilling easier and more effortless. 5. A good helper for metal processing.   Specification: Condition: 100% Brand New Material: Alloy Steel Tap Wrench Model: M3-M12 Screw Taps Model: M3X0.5, M4X0.7, M5V0.8, M6X1, M8X1.25, M10X1.5, M12X1.75 Drills Model: 2.5, 3.3, 4.2, 5, 6.8, 8.5, 10.2 Weight: Approx. 620g / 21.9oz Box Size: Approx. 152 * 108mm / 6.0 * 4.3in   Package List: 1 * Tap Wrench 7 * Screw Taps 7 * Drills Package List