Door latch installation kit for accurate and professional installation, suitable for square or round deadbolts

C-his-el Installation: The latch not only perfectly replicates the shape of the door lock, but also features a ch-ise-l on top to create the door lock hole and a built-in screwdriver head for easy installation.

No Measuring Required: Flip the rail 90° and insert it into the slot, depending on door thickness. It can accommodate 1-3/8" (approximately 3.8 cm), 1-3/4" (approximately 3.8 cm), or 1-3/4" (approximately 3.9 cm).

Compatible with Round or Square Mortise Locks: The reversible latch provides notches for round and square locks, significantly reducing the number of tools you need to bring to the job site. Recommended for carpenters and DIYers, no need to worry about tool incompatibility.