Detachable Drill Steel  
  
  Thread Type  | Dimension A  | Dimension B  | Dimension C  | Threads/Inch  |  
|---|---|---|---|---|
D  | 1.180"  | 1-3/4"  | 0.868"  | 5"  |  
E  | 0.623"  | 7/8"  | 0.500"  | 6"  |  
H  | 0.998"  | 1-3/8"  | 0.711"  | 6"  |  
  
  Thread Type  | Dimension A  | Dimension B  | Dimension C  | Threads/Inch  |  
|---|---|---|---|---|
D  | 1.180"  | 1-3/4"  | 0.868"  | 5"  |  
E  | 0.623"  | 7/8"  | 0.500"  | 6"  |  
H  | 0.998"  | 1-3/8"  | 0.711"  | 6"  |