Features: Adjustable hole saw drill guide jig fixture with vacuum base sucker. A small size, the middle position of large size, can be put into 4-80mm driller. Secure the guide with suction base, feed water through the integrated hole. You can use the guide to start the hole and remove the guide for the remainder of the holes. This suction cup is designed for glass and tiles even in small sizes and it is easy to attach to cooling systems. Descriptions: Locator suction large, good stability, triangular area set. Solid surface and clear instruction,high practicability. Good reliability and lifelong lasting time, is useful and durable. Specifications: Material: Plastic Color: Lake Green Size: 250*150mm Fold size: 185*150mm Search term: Adjustable 4-80mm, Ceramic Porcelain Drill Bit, Tile Glass Openings Locator, Hole Saw Core Guide, With Vacuum Base Sucker Features: Adjustable hole saw drill guide jig fixture with vacuum base sucker. A small size, the middle position of large size, can be put into 4-80mm driller. Secure the guide with suction base, feed water through the integrated hole. You can use the guide to start the hole and remove the guide for the remainder of the holes. This suction cup is designed for glass and tiles even in small sizes and it is easy to attach to cooling systems. Descriptions: Locator suction large, good stability, triangular area set. Solid surface and clear instruction,high practicability. Good reliability and lifelong lasting time, is useful and durable. Specifications: Material: Plastic Color: Lake Green Size: 250*150mm Fold size: 185*150mm Package Include: 1 x Tile Glass Openings Hole Saw Locator Notes: Due to the difference between different monitors, the picture may not reflect the actual color of the item. We guarantee the style is the same as shown in the pictures.