The APEM Inc. part 1D09 is a high-quality tactile switch with a round cap, designed for easy switch access and smooth operation. This switch is perfect for various applications that require a reliable and responsive switch solution. The round cap provides a comfortable and user-friendly interface, making it suitable for use in devices such as medical equipment, industrial control panels, and consumer electronics. With its durable construction and excellent tactile feedback, the APEM Inc. part 1D09 is a versatile and reliable choice for demanding switch requirements.