Industrial Roughness Comparator Kit 30 Samples, RUG-100 Calibration Block for Visual & Tactile Finish Comparison, Meets S.A.E Standards

Specifications:The exterior roughness comparator is used to check the smoothness of mechanical workpieces by comparison, while the visual inspection or microscope is used to compare and test the degree of exterior roughness.features:RUG-100: notebook sample block (turning, end milling, flat milling, exterior grinding, external grinding, polishing)The notebook sample block contains standards for the six most important processing for methods among the popular "AA" values. All 30 samples were calibrated with for uAA (arithmetic mean) and metric equivalent um Ra.Sample exterior roughness comparator 30 pieces of composite bag fixing gauges3 Flat grinding: 2,4,8; 7/8 "x 3/8" each; Each type of exterior finish is a true and consistent reproduction, with a true idea of the feel, appearance and texture of machined partsCompare conveniently and quickly; Comply with S.A.E and specificationsOverall wallet size (fully enclosed) L x W x H (inches): 6 x 3 x 3/8 * estimated *; Unit weight: 14 ounces * estimate only*The package includes:A set of 30 sample pieces

• 【6 Machining Standards】Includes 30 precision samples covering turning, end milling, flat milling, grinding, cylindrical grinding, and polishing processes with AA values and metric Ra equivalents for comprehensive comparison.
• 【Visual & Tactile Inspection】Each sample provides true reproduction of machined finish, allowing both visual comparison and tactile feel assessment for accurate roughness evaluation without equipment.
• 【Portable Compact Design】Wallet-style case measures 6x3x0.375 inches (15x7.6x1 cm) with 30 samples securely housed, weighing only 14 oz (400g) for easy portability to job sites and quality control stations.
• 【Standard Compliance】Manufactured to meet S.A.E specifications and industry standards, with all samples calibrated using arithmetic mean (Ra) measurements for reliable and consistent comparison results.
• 【Immediate Practical Use】Enables quick roughness checks by direct comparison with workpiece , for machine operators, quality inspectors, and manufacturing engineers needing finish verification.