Reverse Circulation (RC) Hammer
RH5RC11- 4 1/2" Metzke box up thread connection
RH5RC12- 4 1/2" Remet box up thread connection
RH5RC13 - 4 1/2" Matrix box up thread connection

Download RC Hammer Manual.

Value	English	Metric
Outside Diameter	4.73 inch	120.1 mm
Overall Length (without bit)	51 inch	1295 mm
Total Weight	150 lbs	68 kg
Bore Size	3.87 inch	98.3 mm
Piston Weight	28 lbs	12.7 kg
Drillpipe Connection	4 1/2 inch Remet 4 1/2 inch Metzke ​4 1/2 inch Matrix	4 1/2 inch Remet 4 1/2 inch Metzke ​4 1/2 inch Matrix
Wrench Flats	3.95 inch	100.3 mm
Hole Size Range	5 1/4 inch - 5 3/4 inch	133.4 mm - 146 mm
Bit Shank Required	R50	R50
Min Air Volume Required *	750 cfm	21 cmm
Max Operating Pressure	500 psi	34 bar

* Hammer will run on less volume but penetration rates will be significantly slower.

Features

• 1 piece sample tube that pulls out from the top.  The hammer does not need to be disassembled to replace the tube.  Just disconnect the drill pipe and pull.
• Sample tube's material and heat treat are designed for give maximum service life.
• Piston cycle produces high penetration rates.
• The Wear Sleeve is reversible.
• Bit shrouds are easily replaced when changing bits and lock onto and rotate with the chuck.
• The shroud aids in producing and excellent sample with minimal contamination.
• Unique design makes the hammer easy to maintain and service.