The best available professional Punching Toolset for leather and rubber straps, made by Augusta Germany, includes 6 different hole punches 1 mm,1.5 mm,1.8 mm, 2.0 mm,2.5 mm and 3.0 mm, you will always find the right size,very easy to handle with thread function, 100 % position save and you dont need a Hammer just push the tool on the right position and cut the hole out.