DESCRIPTION AND CONSTRUCTION:
In this test, pencils in the range of 6B to 6H hardness grade are used. The pencil is moved scratching over the surface under a 45 deg. angle in a specific carriage with a constant pressure / force, using progressive hardness pencils.The surface will be variably damaged, in function of the pencil hardness,thus pass / fail or hardness to failure evaluations are possible. The harder the pencil the lighter the mark, and the softer B-grade leads tend to create darker colors and smear easily. The Block comes with Built in spirit level.
Available in 3 different models:
Carriage block with built in spirit level. 500gm/5N CODE:10005-00
Carriage block with built in spirit level. 750gm/7.5N 10005-04
Carriage block with built in spirit level. 1000gm/10N 10005-05
MITSUBISHI Hardness pencils set of 14 pencils 6B to 5H. 10005-01
MITSUBISHI Hardness pencils set of 20 Pencils 9B TO 9H. 10005-02