Quality Assurance: Well-designed, well-crafted. Not an Part Number part, but meets Part Number manufacturing requirements. This is the manufacturer's replacement and is functionally equivalent to the previous part. Made of highly materials, rigorously tested, compact & sturdy, longevous. Easy to install, saves time and money. Please confirm that the model you need to buy matches our model before ordering. For 42-06-2856 1/2inch Square Anvil Assembly For Electric Tool Manufacturer Part Number 42-06-2856 Reference (Fit/Form/Function) For 2855P-20 Impact Wrench Note: 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. Tips:The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use. Colour:As Shown Material:Metal Package Contents: 1 * Square Anvil Assembly Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.