Wolff-Wilborn Pencil Hardness Tester The TQC Pencil Hardness Test according Wolff Wilborn provides a simple method to test the scratch hardness of coatings. In this test, pencils in a range of 6B to 8H hardness-grade are used. The pencil is moved to scratch over the surface under a 45°... $625.00 Choose Options Compare
PENCIL SET 8B-10H PENCILS FOR HARDNESS TEST ACCORDING WOLFF WILBORN Koh-I-Noor 1500 set of 20 pencils in an aluminum case to use with the Wolff Wilborn Hardness Test. Pencils ranging from 8b -2H When testing by Pencil Hardness - Make sure all parties are using the... $109.00 Add to Cart Compare
