Center Rock In

By May 1, 2017


Center Rock Inc., manufactures and distributes a complete line of air drilling tools and products worldwide. We serve the construction, oil and gas, deep geothermal, mining/quarry, and water well/geothermal industries.


Underground construction technology/utility/horizontal drilling can be a challenge and the Low Profile (LP.) Drill Series from Center Rock is up to the task. The advanced engineering of the drills provides a cost effective solution for drilling and excavation requirements up to 120″ in diameter. Our drills have been used by some of the nation’s largest building, roadway, and mining contractors to quickly drill holes to the exact size required by their specifications.

ROTO LOC® Under Reamer

Center Rock’s revolutionary ROTO LOC® changes everything! Wings lock in place to cut full diameter through any formation. No expensive starter casing teeth/ring bit left in hole. Straight holes in pinnacle limestone and karst formations eliminating bent or broken casing. Easily retractable wings compared to other overburden drilling systems. Positive locking wings can be used to hold/pull casing back. Rotary lockout feature ensures full-size hole for greatly reducing casing friction.


The CRI hammer series uses a uniquely engineered air cycle to improve hammer performance and durability, even with water injection. The valveless design features specially configured porting to enable water injection through the hammer cycle. That means a more durable hammer that drills fast, wet, or dry.

Wassara Water Hammers

Center Rock now offers a complete line of world-renowned Wassara Straightforward Water Hammers! Wassara’s drilling technology minimizes the amount of pressure applied to the rock formation. As a result, there’s virtually no chance of disturbing surrounding and adjacent structures. The groundwater table is also not impacted in any manner.


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