Big Horn 70142 Center Marker for 1 Inch Latch Bore with Stainless Steel Point - Replaces Templaco CM-800. The Strike Locator is used to mark a door jamb for proper installation. After a 1” edge bore is drilled, insert the Strike Locator, close the door, put pressure on the punch and the sharp center of the tool marks the frame where to drill for proper latch or deadbolt alignment. Features: The Strike Locator is used to mark a door jamb for proper installation More Information Model# 70142 UPC 766565701423 WARNING California Proposition 65 Brand Big Horn