YUCHENGTECH Surface Roughness Standards Set 30Pcs Surface Roughness Comparators with 5X Magnifying Glass Surface Finish Comparator Ra0.05-12.5mm for Lathe Machinery Manufactur Teach

Introduction Surface roughness comparator is used to check the smooth finish of a mechanical workpiece by comparision method and eye estimation or microscope is used to compare and detect the degree of the surface roughness. RUG-100:Note book sample block(turning,vertical milling,plain milling, plain grinding, extermal grinding, polishing.) Notebook sample block contains standards for the six most important maching methods in the prevalent “AA” values. All 30 speciments are calibrated in uAA(Arithmetical Average) and in the metric equivalents um Ra.

• 1. Highly Accurate Measurement: Surface roughness comparators come standard with 30 samples of different roughness grades (Ra0.05-12.5 mm), providing you with a wide range of choices to easily differentiate and compare different surface qualities and ensure that your products meet the highest standards.
• 2. Multiple Processing Methods: This surface roughness standards set can measure the roughness of six processing methods (Horizontal Milling, Vertical Milling, Turning, Plane Grinding, Flat Lapping, and External Grinding). Multiple functions can be realized, such as measuring different types of surfaces and detecting various textures.
• 3.Stable and Reliable: The surface finish comparator set is made of No.45 super carbon steel, which is stable and durable, not easy to deform, and has an oil film to protect it from rust, so you can rest assured of long-term repeated use to ensure accuracy and reliability.
• 4. Easy to Use: The standard kit is clearly labeled with the model number, and the specimen blocks correspond to each other in an orderly manner, so it is very simple to compare, check and identify. A 5X handheld magnifying glass is included to aid in identification. Whether you are a student or an experienced engineer, you can easily operate and compare to meet your needs.
• 5. Wide Application: Surface roughness standards set is not only suitable for surface roughness measurement, quality control and instrument calibration, but also an intuitive teaching aid for mechanical majors in higher education institutions, which can meet the needs of different industries and fields of various applications.
• 6. Warm Tips: When using the roughness test block, try to be in the same conditions as the inspected parts, including surface color and lighting conditions. No direct hand contact with the comparison sample block, strict anti-rust treatment to prevent rust and corrosion, and avoid touching scratches.