Features 1Made of high quality highspeed steel. Good performance, lightness, heat resistance and toughness. 2Different drill sizes offer numerous advantages. Suitable for most metals. 3These drills are packed in high quality hard cases and neatly arranged. According to their length, you can operate them easily and see the drills of the corresponding length at a glance. 4The drills are suitable for drilling of steel, copper, stainless steel, iron, aluminum, ceramic tiles, acrylic, wood, metal, marble, aluminum alloy. 5Suitable for face milling, finish milling, machining in carbon steel, alloy steel, tool steel, cast iron and titanium. Specification Features: Made of high quality highspeed steel. Good performance, lightness, heat resistance and toughness. Different drill sizes offer numerous advantages. Suitable for most metals. These drills are packed in high quality hard cases and neatly arranged. According to their length, you can operate them easily and see the drills of the corresponding length at a glance. The drills are suitable for drilling of steel, copper, stainless steel, iron, aluminum, ceramic tiles, acrylic, wood, metal, marble, aluminum alloy. Suitable for face milling, finish milling, machining in carbon steel, alloy steel, tool steel, cast iron and titanium. Specifications: - High speed heat treated carbon steel - Black oxide industrial finished - Size: 14mm, 16mm, 17mm,18mm,19mm, 20mm, 22mm, 25mm - Packaged in wooden case Package Includes: -14mm, 16mm, 17mm,18mm,19mm, 20mm, 22mm, 25mm drill bits -Presented in wooden case Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List