Skeletool hammer mod with heat inserts

Skeletool hammer mod with heat inserts for improved lifetime and stability. I modified the original file to fit m2x3.5x2 brass inserts to reduce the wobble of the hammer caused by the weak plastic threads. Longer or bigger inserts shouldn't work because of the thight spaces.printed at 100% infill no supports 0,12 layer height in eSun PLA