Made of highly materials rigorously tested compact and sturdy longevous. Quality Assurance: Well-designed well-crafted. Not an part numebr part but meets part numebr manufacturing requirements. This is the manufacturers replacement and is functionally equivalent to the previous part. Easy to install saves time and money. Please confirm that the model you need to buy matches our model before ordering. For drive pulley part number N004510 Compatible with DHS716 Type 20 DHS716AB Type 20 DHS716AT2 Type 20 DHS716T2 Type 20 DHS790 Type 20 DHS790AB Type 20 DHS790AT2 Type 20 DHS790T2 Type 20 DW716 Type 1 DW716 Type 2 DW716 Type 20 DW716 Type 3 DW716 Type 4 DW716XPS Type 20 DW717 Type 2 DW717-AR Type 2 DW717-B2 Type 2 DW718 Type 1 DW718 Type 2 DW718 Type 3 DW718-AR Type 3 DW718-AR Type 4 DW718-B2 Type 3 DW718-B2 Type 4 DWS709 Type 20 DWS779 Type 20 DWS780 Type 1 DWS780 Type 20 DWS780-AR Type 1 DWS780-AR Type 20 DWS780-B2 Type 1 DWS780-B2 Type 20 DWS782 Type 20 Colour:As Shown Material:Metal Note: This part is a compatible spare part and the manufacturers name and part number are for reference only. Installation guide not included we strongly recommend you professional installation. Please check as much as possible to make sure the item is what you need. Due to different batches there may be differences in product appearance and printed text which not affect use Package Contents: 1 N004510 Miter Saw Drive Pulley Only the above package content other products are not included. The measurement allowed error is 1-3cm.