Drill Bit Hole Saw Guide Jig Fixture, 4mm 80mm Adjustable Diamond Opening Locator Cceramic/Glass/Marble/Tile Core with Vacuum Suction Base Sucker

【Suction base】Suction base has good strength to hold the centering jig tight and well on smooth 【Material】Hole locator made of engineering grade plastic, durable quality, not easy to get cracked as those fragile ones. 【Adjustable plates】Adjustable plates opening length is 4-80mm, large enough to put in all sizes hole saws. 【Easy to Store】More accurate drilling, drilling guide easy to store and can be used for many times. 【Application】Guide hole saw or drill bit to drill clear holes on tile, glass, marble, fish tank, ceramic, etc., Weight: 0.8157103694 pounds, Manufacturer: Zerodis