Item | Type | Strata | Bit Diameter | Screw thread size |
Double wings anchor drilling bit | Half Piece,Normal Type | F≤8 soft and medium hard rock | Φ25mm | M14 X 1.5 M12X2 M16X2 |
Full Piece,Strengthened Type | F≤10 soft and medium hard rock | Φ27mm | ||
Half Piece,Normal Type | F≤8 soft and medium hard rock | Φ28mm | ||
Full Piece,Strengthened Type | F≤10 soft and medium hard rock | Φ30mm | ||
Triple wings anchor drilling bit |
Half Piece,Normal Type | F≤8 soft and medium hard rock | Φ32mm | |
Full Piece,Strengthened Type | F≤12 soft and medium hard rock | Φ42mm |