Kitchen cabinet drawer handles that turn in and those that turn out refer to the orientation or direction in which the handle points or faces when attached to the drawer front. Here's the difference between the two:
Handles that turn in: These handles are designed to be installed in a way that the handle itself curves or turns towards the cabinet or drawer when you grip it. In other words, the handle points inward or faces the cabinet or drawer front. When you pull on the handle, you will be pulling it towards you, and the curve of the handle will be facing the cabinet.
Handles that turn out: These handles are installed in a way that the handle curves or turns away from the cabinet or drawer when you grip it. The handle points outward or faces away from the cabinet or drawer front. When you pull on the handle, you will be pulling it away from the cabinet.
The difference in orientation is purely a matter of design preference and does not impact the functionality of the handle. Both types of handles can serve their purpose well and allow you to open and close the drawers effectively.
The choice between handles that turn in or turn out is mostly an aesthetic consideration, and people may choose one over the other based on their personal taste and the overall style they want to achieve in their kitchen or cabinetry. Some may find handles that turn in to be sleeker and more modern, while others may prefer the classic look of handles that turn out. Ultimately, the decision depends on the individual's design preferences and the overall theme of the kitchen.