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Musktool-Japanese Tsubosan Hardness Testing File, Hardness Detection File, HRC 40 - 65 degrees, 6 - piece set
Features
Exclusive Grading Detection Design for Medium and High Hardness Specifically designed for workpieces in the medium and high hardness range of HRC 40 - 65. The 6-piece set adopts gradient grading coverage (each file corresponds to HRC 40 - 45/45 - 50/50 - 55/55 - 60/60 - 65 and a reference calibration file), avoiding detection errors caused by an overly wide coverage range of a single file. It can accurately meet the rapid qualitative detection requirements of workpieces with different hardnesses such as quenched steel and die steel. There is no need to rely on large hardness testers to judge on - site whether the hardness meets the standard. Japanese Seiko Materials and Technology The file body is made of imported high - carbon high - speed steel (SKH - 51) or high - carbon tool steel (SKS3) from Japan. After vacuum quenching + cryogenic treatment, its own hardness is stably maintained at ≥HRC 62, ensuring that the file blade does not wear or deform during detection, and the detection accuracy can still be maintained after long - term use. The blade edge is precisely ground and polished, with uniform and sharp tooth shapes. During detection, the hardness level can be quickly judged by the depth of scratches on the workpiece surface, and the operation is intuitive and efficient. Durability and Operational Optimization Design The surface of the file is rust - proof treated (such as blackening or chrome - plating), which can resist corrosive environments such as workshop humidity and cutting fluids, and extend the service life. The handle is made of TPR composite material or solid wood, which is ergonomically designed, anti - slip and comfortable to hold. Even if held for a long time for detection, it is not easy to cause fatigue. The set is equipped with a customized portable storage box, which can fix the position of each file, avoid damage to the blade edge caused by mutual collision of files during transportation or storage, and is convenient to carry to the on - site for detection. Industrial - Grade Detection Reliability The product complies with Japanese JIS industrial standards and international general specifications for hardness detection tools. Each batch of files is calibrated by standard hardness blocks (such as HRC 45/55/65 reference blocks) before leaving the factory. The detection accuracy is controlled within ±1 HRC. It can meet the needs of batch quality inspection or sampling inspection in fields such as machinery manufacturing, die processing, auto parts, and cutting tools, replacing the inconvenience of traditional hardness testers in on - site detection. |
Key technical parameters
Parameter items | Specification data |
Brand and model | Japanese Tsubosan 6 File for detecting the hardness of the set |
Detect the hardness range | HRC 40-65 |
Material of the file body | High-carbon high-speed steel SKH-51 or high-carbon tool steel SKS3 |
The hardness of the file itself | ≥HRC 62 |
File specifications | The total length is 150 - 180mm, the blade length is 100 - 120mm, and the tooth type is fine teeth. |
Handle material | TPR Composite anti - slip material or solid wood material |
Detection accuracy | ±1 HRC |
Suit configuration | 6 Graded files + 1 customized portable storage box |
Applicable workpiece materials | Quenched steel, die steel, alloy tool steel, bearing steel, high - speed steel cutting tools and other medium - to - high hardness metals |
Application scenarios | On-site inspection of the mechanical workshop, quality inspection of molds, batch sampling inspection of components, and verification of tool hardness |
Execution standards | Japan JIS G4401、ISO 6508 |
