KEYSTONE HP

HEAVY DUTY DESIGN COUPLED WITH HARD HITTING CS8 HAMMERS AND 10” QUICK CHANGE BITS, MAKES THE KEYSTONE HP SUPERIOR FOR LARGE HOLE APPLICATIONS

Change bits in the field

• Patented quick change technology allows bits to be replaced in the field

• Bit installation with all-thread and wrench

• Bit removal with air powered hydraulic power pack

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CLUSTER REAMER

• Drill large diameter holes with less bits/hammers and air compressors
   

• Sizes up to 144" (Consult factory for larger sizes)
   

• Cluster Reamers have a guide ring designed to follow a smaller pilot hole
   

• Divide hole drilling into progressive steps with the same bits, hammers, and air requirements
   

• Cluster Reamers are also available in reverse circulation canisters

CLUSTER POLE DRILL

• Continuous Rotation Swivel Drilling

• Mark VI, Side Inlet Swivel included (4" NPT Inlet)

• 4,700 lbs. fully loaded (24")

• Approximately 9-1/2' tall

• Available in 24", 30", and 36" diameters

• Adapter to weld hex connection or Kelly box (Keystone or customer supplied)

• 6' standard drilling depth

• Add custom pipe strings to increase drilling depth to your specification

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PERCUSSION CORE BARREL

• Reduce number of compressors, bits, and hammers needed to drill hole

• Ex. 48" Core Barrel - 3 bits/hammers, 48" Cluster Drill - 7 bits/hammers

• 3 1/2' drilling depth until stub removal (greater depths are possible upon request)

• Integrated "ratchet" air inlet

• 10" wide Kerf (48" Core barrel leaves 28" stub)

• Same low height as traditional Cluster Drill

• Reduced overall weight

• Reduced overall weight on bit requirement

• Reduced operating torque

• Custom sizes available