B-101 Impregnated Diamond Core Bit

Size B-101 Design Metric
Outer diameter MAX (mm) 101.12 Outer diameter MAX (in) 3.981
Outer diameter MIN (mm) 100.87 Outer diameter MIN (in) 3.971
Inner diameter MAX (mm) 86.82 Inner diameter MAX (in) 3.418
Inner diameter MIN (mm) 86.57 Inner diameter MIN (in) 3.408
Hole diameter (mm) 101.5 Hole diameter (in) 3.99
Core diameter (mm) 86.7 Core diameter (in) 3.41
Hole area (cm2) 80.6 Hole area (in2) 12.5
Core area (cm2) 59.0 Core area (in2) 9.15