Used for excavating coal, digging holds,and digging slot. ItemWeight(kg)OverallLength(mm)ImpactEnergy(J)Frequency(Hz)Air consumption(L/S)Pituitary diameter(mm)Air pressure(Mpa)Drill specification(mm)Hose size(mm)G87.8530≥35≥16 ≤23360.5-0.63Dia 24*70Dia 16G1010570≥43≤2638Dia 24*70Dia 16G1210570≥45≤2638Dia 24*70Dia16G1614580≥55≤28/Dia 24*70Dia19G20-A20540≥60≤28/Dia 30*87Dia19G20-B17.5640≥55≤28/Dia ...