A 3D printed Titanium Hammer with one hard titanium side, and one side hard rubber for more delicate surfaces.
Repeat after me, that pedal wrench is NOT a hammer! Every pro mechanic I know carries a machinist hammer, and over the years, most of these have gone titanium to save weight in the tool case. 
 
This hammer is 3D printed in hardened 6/4 Titanium with a hollow head that we fill with 125 grams of fine stainless steel and fine tungsten grit, giving it higher impact energy than a solid titanium head, while also eliminating any recoil. The hammerhead is hard titanium on one side and medium-hard rubber on the other for use on delicate surfaces.
Specifications:
Total weight of 160 grams
125 grams of fine stainless steel and fine tungsten grit to eliminate recoil
Head weight of 135 grams
3D printed 6/4 Ti
SILCA Shield Warranty