Description

SIZE OF PLATE FLATNESS TOLERANCE IN mm, FOR ACCURACY GRADE WEIGHT IN KGS. (APPROX.) GRADE OO GRADE O GRADE 1 GRADE 2 These Granite Surface Plates are manufactured to precision standards using the highest quality granite. ACCURACY Rigorous quality control inspection is carried out at all stages. Final inspection is carried out by a High Precision Computerised Electronic Level. ACCURACY UNDER LOAD Granite Surface Plates are capable of supporting a totla normal load of *5 Kgs. per 0.1 xxxxx CERTIFICATE A Certificate of Accuracy is supplied with each plate. TECHNICAL DATA These Granite Surface Plates are manufactured in Four Grades. The typical application of these Four Grades are as under : GRADE OO - is of laboratory grade. It is specified for precision measurement in gauge rooms and metrology laboratories. GRADE O - is of inspection grade. It is specified for general work in quality control. GRADE 1 - is of tool romm grade. It is specified for production checking work through the shop. GRADE 2 - is of for use in shops for general inspcetion