describeMade of engineering-grade plastic, durable and not easy to shatterThe adjustable plate has an opening length of 4-80mm, enough to accommodate hole saws of various sizesMore precise drilling, easy to store, can be used multiple timesThe suction base has good strength and can hold the centering clip well on smooth surfacesA pilot hole saw or drill drills holes in tile, glass, marble, fish tanks, granite, ceramics, and more.Product DescriptionfeatureTile hole saw is made of engineering grade plastic, durable in quality and not easy to crackAdjustable plate opening length from 40-80mm / 1.57"-3.15", enough to fit hole saws of all sizesThe easy-to-store and reusable suction cups have good strength to keep the centering clips on smooth surfaces, andVacuum suction cup with cooling hole suction cup for tile, glass, aquarium, marble, granite, ceramicPackage Included:1 adjustable hole locatorPlease allow 1-3mm error due to manual measurement. Make sure you don't mind before bidding.Please erstand that colors may vary by monitor.usage:1: Mark the position to be drilled. table hole locator2: Put the drill bit into the frame hole, press the handle, lock the position3: Tighten the positioning shaft wheel and fix the positionerSpecification:Material: engineering plasticcolor greenClamping Range: 4-80mm/0.2-3.1"Product Size: Approx. 15*(18.5-25)cm/5.9*(7.3-9.8)inchPackage Weight: Approx. 372 g