Metal: Steel, stainless steel, bronze, copper, nickel, iron
Density: Medium
Recomended RPM: 1000-2000
Recomended RPM: 2500-5000
Recomended RPM: 4500-10000
Metal: Steel, stainless steel, bronze, copper, nickel, iron, aluminium
Recomended RPM: 2000 - 4 000
Recomended RPM:4000-7500