This quality kit has what you need when it comes to basic sampling of mud, soil, or sand. Kit includes: three 3-1/4” dia. thread-on augers (mud, soil and sand), 2” dia. x 6”L thread-on core sampler with hammer attachment, butyrate liner, three 4’L thread-on extensions, rubber-coated thread-on cross handle, 2” cleaning brush, and two crescent wrenches. Augers are carbon steel/stainless steel and the core sampler and extentions are chrome molybdemum. All components fit securely in a foam-lined, plastic Pelican® case.