Tungsten Carbide Rotary Burr
2. Physical Properties:
A. Hardness:      90.0 – 92.5 HRA
B. Density:      14.40 – 15.00 g/cm3
C. Maximum Porosity:
    1.Type A:     02
    2.Type B:     02
    3.Type C:     00
D. Transverse Rupture
    Strength:     320,000 Ib/in2
E. Average WC Grain Size: 2.5 μm
3. Constant of Metallurgy
A. Free of ETA-phase
B. Uncontaminated by other carbide grades or contents