Switches are commonly replaced parts in power tools. A switch handles all on/off and variable speed functions. It also plays a role in electric braking by momentarily reversing electrical polarity. Because switches use mechanical internals, they tend to degrade and wear out over time, eventually requiring replacement. Some common signs of a broken or failing switch are: 1. The tool has completely stopped functioning—it will not turn on. 2. The tool operates intermittently, requiring multiple attempts to turn on, until it no longer turns on at all. 3. Variable speed function and electric braking are not working properly. Trigger Switch Part Number: 153609-00 This switch is a compatible replacement for the DW708 Cross Cut Miter Saw Types 1, 3 & 4 only. Product Name: Trigger Switch Part Number: 153609-00 Applicable Model: DW708 Cross Cut Miter Saw Types 1, 3 & 4 only Note: - Installation guide not included. Professional installation is recommended. - Please verify compatibility before purchase. - Due to manufacturing variations, the actual product may have slight differences in appearance or color. These differences do not affect functionality. Color: As shown Material: Plastic Package Contents: 1 x Trigger Switch