GEOTECHNICAL CORE BITSGEOTECHNICAL CORE BITS WHICH SOIL SAMPLING TOOLS ARE AVAILABLE? PART IWHICH SOIL SAMPLING TOOLS ARE AVAILABLE? PART I THE NEW 'RS-5' REAMINGTHE NEW 'RS-5' REAMING AUGERS, what they are and how they workAUGERS, what they are and how they work ROLLER BIT, what it is and how it worksROLLER BIT, what it is and how it works WHICH SOIL SAMPLING TOOLS ARE AVAILABLE? PART IWHICH SOIL SAMPLING TOOLS ARE AVAILABLE? PART I