Pencil Hardness Tester

 Pencil Hardness Tester 750g
Main Technical Parameters
1. Three points are touched on the tested surface
(roller pencil lead)
2. The angle between pencil and the tested surface : 45°
3. Pressure of pencil lead : 750 g
4. Packing List :
(1) Pencil Tester, Body
(2) 1 Set of Pencils : UNI Brand Total : 17 pieces
6B-5B-4B-3B-2B-B-HB-F-H-2H-3H-4H-5H-6H-7H
-8H-9H
(3) Special Pencil Sharpener
(4) Abrasive Paper, 400 grade grit.
(5) Spirit bubble
(6) Rubber