... with all kinds of DTH hammer. Down the hole hammers and DTH bits (Down The Hole Drilling) (1) Size: 90mm-254 ... with flat face, concave design fit for the atlas copco and ingersoll-rand model etc.(2) DTH Hammer: IR hammer, DHD3 ... , DHD340, DHD350, DHD360, DHD380, COP32, COP44, COP54, COP64, COP84, and low pressure hammers CIR65a, CIR90, CIR110, CIR150, CIR170 etc. (3) Package: In ...