1. Compatibility: N621119 Steel Outer Clamp Washer 648697-00 DCS372 Blade Bolt is compatible with DCS390, DCS391, DCS392, DC310, DCS373 circular saws, as well as DC310K, DC390B, and DCS393 models. 2. Material: Made of selected material, it is designed to be durable for extended use. Installation is straightforward; simply replace the damaged parts without needing to repurchase the entire product, which helps save time and money. 3. Quality: Well-designed and crafted. It is not an original part number product but meets the manufacturing requirements of the part number. This is a manufacturer's replacement and is functionally equivalent to the original part. 4. Product Name: N621119 Steel Outer Clamp Washer 648697-00 DCS372 Blade Bolt - a replacement part for outer clamp washers of compatible tools. 5. Colour: As shown. 6. Material: Metal. 7. Package Contents: 1 x Washer, 1 x Blade Bolt. Only the above items are included; other products are not part of the package. 8. Note: Light reflection and different display settings may cause slight color differences between the item in the picture and the actual product. A measurement error of +/- 1-3cm is allowed.