Dimension: Φ25-42mm

Screw thread size: 14x 1.5;12x2

Improve the drilling efficiency greatly in the hard rock with good wear resistance impact resistance of the blade. It is with long life, high efficiency into a hole which do not need repeated grinding and is not easy to shrink diameter. The drilling bit helps improve construction efficiency and reduce labor intensity.

 

It has better stability than double wings drilling bit during hole-opening and drilling process. There are four water holes so that it can remove chip very fast. The efficiency is 2 times than double wings drilling bit during drilling process. The effect is especially great when using under f=8-15 rock strata.

Performance Data

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