Fowler 527200000 Surface Finish Comparator Set 30 Specimens

SURFACE FINISH SPECIMENS This surface roughness specimen set is ideal for checking identifying and specifying the degree of roughness of machine parts features 30 different specimens for flat lapping reaming grinding turning horizontal and vertical milling DIMENSIONS The surface roughness specimens feature grade AA values displayed in microinch and micron values accurate to within 12 of the nominal values each of the 30 specimens made of electroformed solid nickel is 0875 by 0375 in size EASY COMPARISON Each type of surface finish is accurately and consistently reproduced to give the operator a realistic idea of the feel appearance and texture of the machined components they can be easily compared with a loupe or by utilizing the scratch test COSTEFFECTIVE CHECKING Eliminates costly checking methods saves time reduces the production of scrap caused by poor finishes SET INCLUDES This roughness specimen set includes a vinyl wallet and instructions.