Features:

  • ●The pencil hardness tester offers an easy method for the determination of film hardness on a flat substrate.
  • ●Three points are touched on the tested surface roller pencil lead The angle between pencil and the tested surface 45°.
  • ● Pencil tip force :500G X 1(1.25kg),250G X 2(0.25kg±10g).
  • ● 1Set of STAEDTLER Pencils (5) :HB,H,2H,3H,4H.
  • ● Standard grinding sand paper and cleaning cloth.Sturdy aluminum case packing.