Switches are commonly replaced components in power tools. A switch controls all on/off and variable speed functions and plays a role in electronic braking by momentarily reversing electrical polarity. Due to their mechanical internal components, switches can degrade and wear out over time, eventually requiring replacement. Common signs of a failing or faulty switch include: 1. The tool has completely stopped functioning and will not turn on. 2. The tool operates intermittently, requiring multiple attempts to turn on, until it eventually fails to start. 3. Variable speed function and electronic braking are not working properly. Trigger Switch Part Number: 153609-00 This switch is compatible with the DW708 Cut Miter Saw Types 1, 3 & 4 ONLY. Product Name: Trigger Switch Part Number: 153609-00 Applicable Model: For DW708 Cut Miter Saw Types 1, 3 & 4 ONLY Note: Installation guide is not included. Professional installation is strongly recommended. Please verify compatibility to ensure this item meets your needs. Tips: Product design may be updated periodically. Due to different production batches, slight variations in appearance or color may occur. These differences do not affect functionality. Color: As shown Material: Plastic Package Contents: 1 x Trigger Switch Only the items listed above are included; other accessories are not included. Note: Lighting conditions and display settings may cause slight color differences between the product image and the actual item. Measurement error allowance is +/- 1-3 cm.