Specifications: - Material: M42 high speed steel - Diameter: 110mm, 120mm, 130mm, 200mm - Diameter of thread: 15mm - Shank Diameter: 10mm - Blade diameter: 6 mm - Trepanning hole depth: 3-38mm - Good for: cast iron boardaluminum board, PVC,woodstainless steel, etc. Features: 1. Hole Saw Cutter before in use, be sure to grasp reasonable, choice, control, tachometer and continuously added to the cooling fluid, in order to prevent edge cracking, such as high-speed drill used in the operation should control switch, so opening and closing to minimize its speed, widely used in conjunction with various types of drill hole drilling on the bench. 2. Opening iron than 5mm, the first open about 1mm deep, and then locate the drill along kerf through a hole drilled through it easier to discharge iron filings. Package include: 1x Hole Saw Cutter