Made of technical grade plastic, durable quality, not easy to crack like fragile ones The opening length of the adjustable plates is 4-80mm, large enough to fit in all hole saws of all sizes More precise drilling, easy to store and can be used multiple times The suction base has good resistance to keep the centering jig well and well on the smooth surface Guide hole saw or drill bit to drill clear holes on tile, glass, marble, fish tank, granite, ceramic etc. 1: Mark the places where you need to drill holes. table hole locator 2: Put the drill bit into the limit hole, press the handle, lock the position 3: Tighten the positioning shaft wheel and secure the positioner
