Avery hardness testing machine Model 6402. Complete with the essential rigid base, an Instruction Manual and hardness conversion tables. Quote from the handbook: The Direct Reading Hardness Testing Machine carries out the Rockwell test, making use of a hardened steel ball or alternatively a diamond cone indenter. A number of combinations of load and indenter are employed in accordance with a specified series of hardness scales. The test is internationally recognised, and both British and American standards have been issued." In fine condition and full working order.  £475 For more details please phone Tom on  01732-464523 (Sevenoaks)