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Material, manufacturing requirements, accuracies, tests, dimensions. Scotch pattern eyed auger with round shank; solid centre auger bit (Jennings pattern nose); Scotch pattern auger bit; Jennings pattern auger bit, with auger handles. See BS...
4.1 Hollow-stem augers are frequently used for geotechnical exploration. One reason they are used is that the method is considered a "dry" drilling method where drill fluids are not needed to advance the borehole in unstable formations. Often, hollow-stem augers are used with other...
Hollow-stem augers are frequently used for geotechnical exploration. Often, hollow-stem augers are used with other sampling systems, such as split barrel penetration resistance testing, Test Method D1586, or thin-wall tube sampling, Practice D1587 (see 2.5). Hollow-stem augers...