Specification :

Diamond grade£ºSMD
Main Material£º¦µ2*4 diamond
Diamond Concentration£º100%
HRC£º15-20¡¢20-25¡¢25-30¡¢30-35¡¢35-40¡¢40-45¡¢45-50
Cor e Barrel Designation Core Bit Core Bit
Outside Set Diameter Inside Set Diameter
Maximum Minimum Maximum Minimum
Inches mm Inches mm Inches mm In ches mm
AQ 1.88 47.75 1.87 47.5 1.067 27.1 1.057 26.85
BQ 2.35 59.69 2.34 59 .44 1.438 36.53 1.428 36.27
NQ 2.97 75,44 2.96 75.18 1.88 47.75 1.87 47.5
HQ 3.77 95.76 3.755 95.38 2.505 63.63 2.495 63.38
PQ 4.815 122.3 4.795 121.8 3 .35 85.09 3.34 84.84
T2-101 3.982 101.14 3.97 100.84 3.3 83.82 3.29 83.56
T6 -101 3.982 101.14 3.97 100.84 3.115 79.13 3.105 78.88