SP Scienceware Bel-Art Micro-Mill II Grinder; Stainless Steel Blade, 115VAC, 60Hz (F37250-0010) by SP Scienceware Bel-Art Micro-Mill II Grinder; Stainless Steel Blade, 115VAC, 60Hz (F37250-0010) FeaturesGrinding chamber disassembles for simpler sample recovery or thorough cleaningSafety interrupt switch forestalls operation unless completely assembledOverall dimensions are 12 " x 10-1/4" x 6-1/4" highThe Micro-Mill II with stainless steel blade swiftly crushes 20 to 50ml samples such as bauxite, limestone, bone, ceramics, pharmaceuticals and similar drier samplesSwiftly crushes samples for further processing . .