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High abrasion resistance

DIAMOND
Coating

CR R0.02 9D

R 0.05 12 D
R 0.1
R 0.15 L2
R 0.2
R 0.3 18 D
R 0.5
24 D
2DBE
3DBE DIAMOND
4DBE
2&3DEM 30 D
4&6DEM 35 D
2DCR
4DCR JJ TOOL’s Own Coating Method (CVD Diamond Coating)
High Resistance and Performance when to cut Graphite
Multiple Product Line

FOR GRAPHITE

DIAMOND Coated End Mills for Graphite

CVD diamond is a binderless- pure crystal, delivering identical PROPERTY CVD Mono PCD K10
properties of single diamond crystal. JJ TOOLS is applying Diamond Diamond
the latest CVD coating technology which has no residual (W/m K) Thermal conductivity 560 110
stress at the interface for extending tool life. (Gpa) Hardness ~ 1000 2,000 50 18
80 ~ 100 50 ~ 100 8~9 10.5
(MPa m1/2) Toughness 1,260 -
(Gpa) Tensile strengh 5~6 3.4 7.6 6.1
400 ~ 800 1,000~3,000 1.2 2.4
(Gpa) Compressive strength
(Gpa) TRS 16.0 9.0
1.3 2.9

SEM Images of Diamond crystal

Diamond surface image Diamond cross section image Diamond cross section image