That thing looks pretty serious. Estwing makes quality products. I have owned one of their hammers for over 20 years. And I have owned one of there 2 lb. beaters for almost as long as that. Good tools!
Owner's manual says apply a light coat of oil. Now to get my proper splitting attire ready for tomorrow. Please see below. Wait! Wrong stuff. Here it ....D'oh! Never mind. I'll just get back to my evening attire for some heavy boob tube watchin!