Rotary Drilling Tool Very Hard Quality Assurance

Adjustable cutting arms can meet the specific requirements of different 
reaming diameters;
After reaming the bore hole, convey spoil with drilling bucket or cleaning 
bucket;
Cutting arms are easy to spread and retract, box-type structure
is easy to maintenance;
Applicable layers: hard stratum, frozen soil and medium soft rock;
 

     Core Barrel with Roller Bit

     Cutting ring with rock drilling bits and releases the internal stress of rock;
     Drilling with the method of rolling and squeezing can increase the anti-wear ability of the barrel;
     Small barrel facilitates the coring operation, large barrel performs stage breaking;
     Applicable layers: medium or slightly weathered rock, hard orsuperhard bedrock;

 

Remark : The length is in millimeters, weight in kilograms.