ASTEC Rock Hammer

ASTEC Hard Rock System

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ASTEC Underground

1. Drills up to 7 times FASTER then Conventional Mud Motors

2. NO Drilling Fluid to CLEAN UP

3. Adapts to most drills QUICKLY

4. Can Steer in ROCK or DIRT

5. A FRACTION of the COST of Competitor's Systems

ASTEC HDD-40/50/60 Hard Rock System

Hard Rock Oiler Hard Rock Head

Air Compressor Requirements:

Model	Bit Size	Requirement
HDD-40	4 1/4"	375 cfm @ 185psi
HDD-50	5 1/4"	750 cfm @ 250psi
HDD-60	6 1/4"	900 cfm @ 350psi