Unbreakable™ Handle Brass Sledge Hammer, 8 lb, 16 in L no checkout oil and dirt Large dome nose screw oil and dirt Large dome nose screw for high conductivity connection push pull grip and prevents accidental "kinking" which could cause hose ruptures Maximum working pressure 4500 psi Non sparking brass head for safe use near combustible materials Non marring brass head helps absorb impact and reduce work damage Patented Unbreakable Technology steel core eliminates breaking during overstrikes Ergonomic Handle is shaped and thickened for improved comfort and less vibration Non Slip Grip vulcanized rubber handle for secure grip while striking