Features 1、Made of premium steel with high hardness, abrasion resistant and long lasting. 2、The blade is extremely sharped, with good perforation capability. 3、Professional and practical design, beautiful appearance, easy to carry and use. 4、Can be used to make large holes in wood, thin steel sheet, aluminum alloy and other soft metal sheet. 5、Professional manufacture ensures you higher quality products, you can buy it with ease. Specification Specifications: - Material: M42 high speed steel - Diameter: 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 gun 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 Package List