Color

Grade

Properties

Application

Black

DBN-B1

Low fracture strength

Automobile, Aerospace

Double disk grinding (Large contact area grinding)

DBN-B5

Medium strength

Semi-blocky shape

Hardened tool steel, stainless steels, Ni/Co alloy, etc.

Normal purpose grinding (Tool, dies)

DBN-B11

Polycrystalline CBN

High toughness & thermal stability

Horning stone

Metal & electroplated application

Amber

DBN-A1

High friability, free cutting activity

Bearing(Vitrified) Gear(Electroplating) Grinding

Precision grinding

DBN-A5

Medium strength, sharp edge

Electroplating, turbine and super-alloy

DBN-A7

Highest strength & thermal stability

Blocky shape and long-tool life

Turbine grinding, Super-alloy material

Heavy grinding

DBN-A9

Dark

Brown

DBN-D3

Sharp edge and medium strength

Cam/Crank shaft grinding

(Vitrified & Electroplated bond)

DBN-D4

Sharp edge and medium high strength

DBN-D6

Semi-blocky shape and medium high strength

DBN-D8

Blocky shape and medium high strength

Bearing steel(Vitrified), Metal & Electroplated bond