Feature: 1. Industrial-grade metal drilling tools are with a lifespan more than 10 times longer than the bimetallic holes seen on hard metal drilling. 2. This hand tool can quickly and accurately cut stainless steel, metal plate, cast iron, light steel, aluminum less than 5 mm. 3. Hole cutter has the ability to keep smooth and perfect cut, which can be suitable for each hole. 4. Via precision craft by many experts, such a hole cutter is entitled with high performance according to strict rule. 5. Entitled with practical adoptability, such cutting set's high quality can keep its high performance for a long time. Specification: Item Type: Hole cutter Hole Opener: Approx. 22mm / 0.87in Approx.28mm / 1.1in Approx. 35mm / 1.38in Height: Approx. 80mm / 3.1in Package List: 3 x Hole Drill Bit 5 x Spring Drill Bit 4 x Hex Wrench