Characteristic Cuts circles cleanly, quickly and accurately in ceramic tiles. Drill head made of tungsten steel and hard alloy steel for high hardness and fast cutting speed. Adjustable rotary head allows cutting round holes in ceramic tiles from 20mm to 94mm; compatible with multiple fixed hole saws. Spring-loaded design helps absorb vibration during operation; compression length reduces from 60mm to 42mm. Description Name: Ceramic Tile Hole Opener Quantity: 1 piece Color: Blue + Silver Material: Metal + Plastic Humanized design: ABS protective cover rotates with the electric drill, effectively preventing dust and debris dispersion. Package Contents: 1 x Ceramic Tile Hole Opener Note: This package includes only the items listed above. Other products are not included. Note: Lighting reflections and display settings may cause slight color variations between the image and the actual item. Measurement error tolerance is +/- 1-3 cm.