Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! [Chisel and Install in One]: Door latch can not only perfectly replicate your latch shape on the door, but also dig the door lock hole through the chisel on top, and install the door latch with the built-in driver bit. [No need to measure]: According to the thickness of the door, flip the 90° fence and insert it into the slot, which can be adapted to 1-3/8Inch or 1-3/4Inch door thickness. [For round or square latches]: Reversible latch mortise machine provides scoring for round and square latches, greatly reducing the number of tools you need to bring to the , recommended for carpenters and DIY persons, no need to worry about tool incompatibility. [Built-in Scoring and chisel Tools]: The latch install kit built-in has switchable square or round blades and a chisel on top, Help cut out professional latch shapes and door lock holes. Color: C Blue Material: plastic Package Contents: 1 * Ball Lock Opener 1 * Latch Mortise Tool Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.