Features:  -Mainly used for opening and positioning of tiles, very suitable for laying tiles.  -Just place the template tool ruler on your work area, slide the ruler into the desired shape, and tighten the screws. The innovative four-sided template tool can be used as a mold for cutting workpieces.  -Create layouts in tiles, bricks, stone, wood, laminate, etc.  -It is perfect for creating round holes, arches, plumb cuts, and any project you can think of.  -Very suitable for professional builders, craftsmen, engineers, weekend warriors and DIY.  -The scale of 1-30.5cm can also be used as a measuring ruler.     Specification:  Product Name: Drill Hole Locator.  Material: Aluminum Alloy+Plastic.  Color: Black.  Total Length: 35.5cm/14in.  Ruler Scale: 30.5cm/12in.  Square Frame Size: 8cm/3.14'x8cm/3.14'.  Hole Inner Diameter: 25mm/0.98', 40mm/1.57',45mm/1.77'.  Quantity: 1pcs.     Package Includes:  1x Drill Hole Locator