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WhatsApp: +86 18221755073fishtail bits, (c) Sizes of solid stem auger flights, (d) Different assemblies of bits and auger flights. (All pictures in the above format are courtesy of DeJong and Boulanger, 2000) Hollow Stem Continuous Flight Augers In general hollow stem augers are very similar to th e continuous flight auger except, as the name suggests,
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