Features --Equivalent Part--What you buy is a complete 3/8" Impact Wrench Anvil Repair Kit. Including a 3/8" anvil Assy (part 2115-A626), an impact wrench support ring (part 1702-426), and an anvil retainer ring (part 1702-425) --Compatible Models--Direct repair impact wrench anvil kit, universally fit for Ingersoll Rand air impact wrench models: IR2112, IR2112S, IR2115, IR2115QI, IR2115QTI, IR2115TI, IR2115TiMAX --Restores Smooth Operation--Replace your overused impact wrench anvil, and recover your impact wrench performance. It is the same size as the 3/8" anvil assy part. You will get rid of the annoying old anvil that falls off the problem .