• Suitable for dry grinding up to 250 ml of hard and brittle material. • Maximum granularity of samples is 6 to 7 mm. • Removable stainless steel grinding chamber is easy to clean. • Fixed speed of 20,000 rpm. • Double-walled chamber can be cooled with water using two hose adapters. • Includes a stainless steel cutter for crushing material up to Mohs hardness 5. • Dimensions: 170 x 170 x 350 mm. • Warranty: 3 years (upon registration). • Power: 120 volt. cUL Approved.