Length    (Less bit)	Weight  (Less bit)	External diameter	Bit Shank	Hole Range		Connection Thread
986mm	37.00kg	Φ92mm	Cop44  DHD340	Φ105-Φ120		API2 3/8”Reg
Working Pressure	Impact rate at 1.5Mpa	Recommended rotation speed		Air consumption
				1.0Mpa	1.8Mpa		2.4Mpa
1.0-2.5Mpa	30HZ	22-40r/min		5m³/min	8m³/min		13m³/min

Item Description	Weight (kg)	Part Number
1. Top Sub 2. “O” Ring of Top Sub 3. Check Valve 4. Spring 5. Air Distributor 6. Internal Cylinder 7. Piston 8. External Cylinder 9. Guided Sleeve 10. “o” Ring of Stop Ring 11. Stop Ring 12. Drive Chuck 13. Drill Bit	6.00 0.01 0.30 0.05 1.30 1.90 7.80 14.60 1.20 0.005 0.20 3.40 8.50	ND45S01 ND45S02 ND45S03 ND45S04 ND45S05 ND45S06 ND45S07 ND45S08 ND45S09 ND45S10 ND45S11 ND45S12 ND45S13