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High precision! Affordable price! Immediate delivery system! We also offer types that meet the JIS standard (JIS B 7514) for straight rulers.
We offer a wide range of straight edges. - For flatness, parallelism, and straightness inspection - For precision marking - For fitting work and more. For further details, please download the catalog or contact us.
The size is 1200×110×60mm, with straightness and parallelism of 3μm!
We would like to introduce an example of special processed stone products, "Straight Edge." The size is 1200×110×60mm, with straightness and parallelism of 3μm. In addition to standard products, we also accept special dimensions, T-slots, screw holes, stepped processing, groove processing, and various other types of machining. Please feel free to contact us for inquiries. 【Overview】 ■1200×110×60mm ■Straightness and parallelism: 3μm *For more details, please download the PDF or feel free to contact us.
Inspection of processed surfaces, used for standard guides, etc.! I-shaped type with minimal distortion.
We would like to introduce the I-beam type straight edge 'Stock No. 204' that we handle. It is used for inspecting processed surfaces, reference guides, etc. It features an I-shape design with minimal distortion. In terms of accuracy, the dimensions are the same as the nominal dimensions, excluding 20mm from both ends. For products over 1500mm, there are elongated holes for easy handling. 【Nominal Sizes (Partial)】 ■500 ■750 ■1000 ■1500 ■2000 *For more details, please download the PDF or feel free to contact us.
For measuring parallelism and straightness as a standard straightedge! A lineup of hardened and non-hardened products.
"Stock No.205" is a product designed to be used with a wider width, allowing for the placement of levels and similar tools. It is suitable for measuring parallelism and straightness as a reference straightedge. Please use it for checking the running accuracy of machines, assembling precision machinery, and installing turbines at power plants, as well as for inspection purposes. The straightness and parallelism (height variation according to JIS) meet the JIS standards for straightedges (JISB7514), and both hardened and non-hardened versions are available. 【Features】 ■ Designed with a wider width to accommodate levels and similar tools ■ Suitable for measuring parallelism and straightness as a reference straightedge ■ Usable for checking the running accuracy of machines, assembling precision machinery, and installing turbines at power plants, as well as for inspection purposes ■ Straightness and parallelism (height variation according to JIS) meet the JIS standards for straightedges (JISB7514) ■ Available in both hardened and non-hardened versions *For more details, please download the PDF or feel free to contact us.
It is suitable for testing the running accuracy of precision machinery and the straightness and flatness of various machined surfaces!
We would like to introduce our stone rectangular straight edge, 'Stock No. 900-3'. It is made from high-quality granite and is suitable for inspecting the running accuracy of precision machinery, as well as the straightness and flatness of various machined surfaces. Additionally, the precision dimensions exclude 20mm from both ends (the same as the nominal dimensions). 【Features】 ■ Made from high-quality granite ■ Suitable for inspecting the running accuracy of precision machinery and the straightness and flatness of various machined surfaces ■ Precision dimensions exclude 20mm from both ends *For more details, please download the PDF or feel free to contact us.
The material is made of high-quality cast iron! It is suitable for precision inspection of machine tools and for fitting.
We would like to introduce our cast iron comb-shaped straight edge 'Stock No. 208'. The material is high-quality cast iron, and the precision aspect features a planed finish, making it suitable for inspecting the precision of machine tools and for fitting purposes. Please feel free to contact us if you would like to place an order. 【Features】 ■ Made of high-quality cast iron ■ Precision aspect features a planed finish ■ Suitable for inspecting the precision of machine tools and for fitting purposes *For more details, please download the PDF or feel free to contact us.
Suitable for inspections of flatness, curvature, etc., and as a marking ruler! Available in hardened and non-hardened versions.
We would like to introduce our bevel-shaped straight edge 'Stock No. 214-1'. It is a suitable product for inspecting flatness, curvature, and as a marking ruler. Additionally, in terms of accuracy, we offer both hardened and non-hardened versions on one side, specifically on the cutting edge side (the side below the label). 【Features】 ■ Suitable for inspecting flatness, curvature, and as a marking ruler ■ Accuracy is on one side, specifically on the cutting edge side (the side below the label) ■ Available in both hardened and non-hardened versions *For more details, please download the PDF or feel free to contact us.
We offer both hardened products (with a hardness of 60 Hs or higher) and non-hardened products! They can be used for inspections of flatness, straightness, and parallelism.
This is an introduction to the "Straight Edge" that we handle. It is a precision straight ruler that can be used for inspections of flatness, straightness, and parallelism. We offer both hardened products (with a hardness of 60 Hs or higher) and non-hardened products. We also have a high-precision "Kou Type Straight Edge A Class" available. Please use it in conjunction with a precision level for the installation of precision machinery, etc. 【Features】 ■ Can be used for inspections of flatness, straightness, and parallelism ■ Available in hardened products (with a hardness of 60 Hs or higher) and non-hardened products *For more details, please refer to the PDF document or feel free to contact us.
It uses natural granite from Jinan, which has superior properties compared to commonly used metals.
Features: 1. Density 2.88–3.07 g/cm³, Shore hardness 79.8–94.0 2. As a stone material, it excels in vibration isolation, chemical resistance, and abrasion resistance 3. High stability due to millions of years of natural aging, minimal changes over time 4. Easy to maintain flatness, low tendency to generate static electricity
Granite is used, and high-precision products compliant with JIS B 7513 are achieved through machine cutting and hand lapping finishing.
We would like to introduce our "Precision Straight Edge (Precision Straight Ruler) JIS Grade 00." It possesses high stability, strength, and hardness, allowing for precision maintenance even in normal temperature environments. It is mainly used in the assembly and inspection of machine tools. It can be used for comparative measurements of the squareness, parallelism, and straightness of precision components such as guide rails, as well as for accuracy verification of precision machine tools. 【Features】 ■ High stability, strength, and hardness ■ Precision maintenance possible even in normal temperature environments ■ Mainly used in the assembly and inspection of machine tools ■ Used for comparative measurements of squareness, parallelism, and straightness of precision components ■ Used for accuracy verification of precision machine tools *For more details, please refer to the PDF document or feel free to contact us.
Introducing products suitable for inspections of flatness, curvature, etc., and for use as marking rulers!
We would like to introduce our standard straight edge 'Stock No. 214-2' that we handle. In terms of accuracy, it is available with one flat surface (the side below the label), with options for both hardened and non-hardened versions. Additionally, it is suitable for inspections of flatness, curvature, etc., and as a marking ruler. Please feel free to contact us when you need it. 【Features】 ■ Ideal for inspections of flatness, curvature, etc., and as a marking ruler ■ Accuracy is on one surface, on the blade side (the side below the label) ■ Available in both hardened and non-hardened versions *For more details, please download the PDF or feel free to contact us.
The tip of the blade has an extremely small R shape! When inspected under light, even more accurate measurements are possible.
"Stock No. 209" is a knife-shaped straight edge with a high-precision straight edge and a thin blade at the edge. The tip of the blade has an extremely small R shape, allowing it to make contact with the workpiece in a straight line, enabling accurate measurement of straightness and flatness. Additionally, when inspected under light, this product allows for even more precise measurements and is made of hardened material. 【Features】 ■ High-precision straight edge with a thin blade at the edge ■ The tip of the blade has an extremely small R shape ■ Allows for accurate measurement of straightness and flatness due to contact with the workpiece in a straight line ■ Enables even more precise measurements when inspected under light ■ Hardened material *For more details, please download the PDF or feel free to contact us.
To ensure precise measurements of straightness and flatness for work, we introduce products that can achieve accurate results!
"Stock No. 211" is a triangular straight edge with high precision finishing on the straightness of its three corner surfaces. The tip of the blade has an extremely small R shape, allowing it to contact the workpiece in a single line, enabling accurate measurement of straightness and flatness. Additionally, when inspected under light, it allows for even more precise measurements and is a hardened product. 【Features】 ■ High precision finishing on the straightness of the three corner surfaces ■ Extremely small R shape at the tip of the blade ■ Enables accurate measurement of straightness and flatness due to single line contact with the workpiece ■ Allows for even more precise measurements when inspected under light ■ Hardened product *For more details, please download the PDF or feel free to contact us.
