Surface Roughness Comparison Sample Block Ra 0.05-12.5mm Metal Machining Testing Kit with 30 Calibrated Specimens for Industrial Measurement Standard

Product description 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 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 gauges 3 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 parts Compare conveniently and quickly; Comply with S.A.E and specifications Overall 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 Manufacturer Contact Information PETiB

• Professional Measurement Tool: This roughness comparator includes 30 calibrated samples representing six important processing methods with metric Ra values ranging from 0.05-12.5mm, allowing for precise superficies texture assessment and quality control in mechanical workpieces.
• Complete Sample Collection: Features a comprehensive set of samples covering turning, end milling, flat milling, superficies grinding, external grinding, and polishing finishes, giving you accurate references for all common manufacturing processes.
• Quick Visual Comparison: Each sample provides true and consistent reproduction of feel, appearance, and texture of machined parts, enabling immediate comparison without specialized equipment while complying with industry specifications.
• Convenient Portable Design: Compact notebook-style block measures approximately 6 x 3 x 3/8 inches when fully enclosed, weighing only about 14 ounces, making it suitable for carrying between workstations or field inspections.
• Practical Workshop Tool: Organized in a composite bag with fixing gauges for protection, this roughness sample block is an essential reference tool for machinists, quality inspectors, and engineers who need to verify superficies finish quality.