[4 hole sizes] The stainless steel tile punch has 4 different hole sizes, 25mm, 40mm, 45mm and 55mm semicircular holes, porous measurement and positioning, more accurate punching. [High quality material] High quality stainless steel material, high hardness, not easy to rust and corrosion, long service life, solid and wear resistant [Flexible and Adjustable] The stainless steel ceramic goniometer is equipped with an adjustable nut. Slide the nut in the range of the movable slot to freely adjust the measurement angle of the punching ruler, 360 free adjustment and quick opening of the hole. [Precise scale] The scale of the punching ruler is laser engraved, the scale is accurate, just adjust the locator to find the position where the hole needs to be opened, tighten the screw, fix the position and mark, then make the hole, easy to use [Scope of application] The multi-functional ceramic tile drilling tool has precise measurement and precise positioning. It is suitable for reserved switch positions, reserved water hole positions, home repair and decoration construction teams, etc., and can be used for precise positioning of ceramic, marble, wood and plastic drilling Note: The data is manual measurement, please allow 1-8cm error, due to differences between light and screen, there will be a certain color difference, the specific received in kind prevail.