1.Top Sub:MD45A01 2."O" Ring of Top Sub:MD45A02 3.Check Valve:MD45A03 4.Spring:MD45A04 5.Air Distributor:MD45A05 6.Internal Cylinder:MD45A06 7.Piston:MD45A07 8.External Cylinder:MD45A08 9.Guided Sleeve:MD45A09 10."O" Ring of Stop Ring:MD45A10 11.Stop Ring:MD45A11 12.Drive Chuck:MD45A12 13.Drill Bit:MD45A13. Technical Date 1.Length(Less Bit):1011mm 2.Weight(Less Bit):43.20kg 3.External diameter:�¸99mm 4.Bit shank:COP44/DHD340A 5.Hole Range:�¸110-�¸135 6.Connection Thread:API 2 3/8" Reg
