Is there a tune-up kit offered for the Model 259 (and 259G) Impactool?
Vehicle Repair and Heavy Duty Maintenance - Impacts
Tune-Up Kit part number 259-TK1 (ccn 45663796) is compatible with both the 259 and 259G Impactools.
A list of Impact Wrench Tune-up Kits can be found: *HERE*
The contents of the 259 tune-up Kit are below (other tune-up kits are similar).