三井刻印 List of Products and Services

At Mitsui Engraving Co., Ltd., we utilize the know-how cultivated in the fine engraving industry to manufacture fine tools, small-diameter tools, and special tools tailored to our customers' needs. Small lot orders are welcome, and we can produce from just one piece. We specialize in sizes limited to 1.0Φ or below; please consult us for sizes under 30μm. We manufacture based on hand-drawn designs and cross-sectional drawings. Measurement values such as outer diameter (in 1μm increments) are displayed on the labels, which can assist in high-precision processing. 【Features】 ○ Small lot orders welcome ○ Limited to sizes below 1.0Φ ○ Manufactured based on drawings For more details, please contact us or download the catalog.

• Other cutting tools
• Other work tools
• Work tools

Our company, which has extensive know-how in the design and manufacturing of cutting tools, offers a "custom end mill manufacturing service" specialized for tip diameters of Φ1.0mm or less. We accommodate small lot sizes, and for PCD tools, we can produce from just one piece! Our strength lies in our ability to respond quickly, with delivery times as short as one week. This service is ideal for fields such as medical devices, where precise cutting is required. ★Currently, we are giving away a booklet featuring processing examples and technical materials!★ You can view an excerpt from it via [Download]. If you would like the complete version, please request it through [Contact Us]. 【Features】 ■ We propose tools tailored to the workpiece materials such as hard and brittle materials, steel, light metals, and resins. ■ All tools are manufactured in-house, ensuring thorough inspection of every piece. ■ Dedicated staff with extensive experience will assist you. ■ We can also accommodate tools with tip diameters of Φ1.0mm or more.

• End Mills

At Mitsui Stamp, we propose the optimal shape of PCD micro tools tailored to our customers' machining applications. Typical shapes include hexagonal prisms, square prisms, cylindrical shapes, and spheres (domes), and we can accommodate tapering for any of these shapes. ■ Ideal for finishing processes on cemented carbide. High-precision direct engraving on hard and brittle materials is also possible. *Prototyping is available from just one piece! For production inquiries, please download the catalog. For more details, please contact us.

• Other cutting tools

PCD stands for Polycrystalline Diamond. It refers to a material made by sintering microcrystals of diamond at high temperature and high pressure. 【Features of PCD Tools】 - Ideal for mirror finishing of cemented carbide - Capable of high-precision direct machining of hard and brittle materials (silicon carbide, ceramics, quartz glass, etc.) - Capable of mirror finishing of hardened steel (such as ELMAX, STAVAX) - Capable of producing pin-shaped squares (minimum CR3μm) - Can accommodate extremely small sizes (such as 0.03φ) - Excellent fracture resistance at extremely small sizes - Regrinding (reuse) is possible ● For information on tool manufacturing, please download and view the catalog.

• Other cutting tools

This is a case study of the production of a PCD tool with an outer diameter of 50μm, ordered by a research institution. Considering factors such as cutting performance and resistance to breakage, we opted for a square prism shape. (Actual tool outer diameter: 48μm) We manufacture optimal micro tools tailored to the workpiece, machining accuracy, and required precision. *Prototyping is possible from just one piece! For production details, please download the catalog and contact us for more information.

• Other cutting tools

Examples of processing using our own tools: "0.2mm engraving on SKH-51" is an example of engraving on SKH-51 using a PCD 0.02φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills tailored to customer requests, starting from small lots. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Pocket machining of carbon fiber reinforced resin" is an example of pocket machining of carbon fiber reinforced resin using a PCD 1.5φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to produce fine end mills tailored to customer requests in small quantities. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L - Pin end ○ 0 degrees / 0.3φ / 0.6L - Ball ○ 10 degrees / 0.2φ / 0.5L - Pin end ○ 20 degrees / 0.5φ / 0.7L - Pin end ○ 20 degrees / 0.2φ / 0.8L - Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Processing through holes in various types of rubber" includes examples of through-hole processing in various rubbers using PCD 1.0φ and 1.5φ. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills tailored to customer requirements, starting from small lots. We can accommodate various shapes. Please feel free to consult with us. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin head ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin head ○ 20 degrees / 0.5φ / 0.7L Pin head ○ 20 degrees / 0.2φ / 0.8L Pin head For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Pattern engraving on white mother-of-pearl (pearl)" is a case of pattern engraving on white mother-of-pearl (pearl) using a PCD 75-degree 0.02φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills tailored to customer requests, starting from small lots. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pinhead ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pinhead ○ 20 degrees / 0.5φ / 0.7L Pinhead ○ 20 degrees / 0.2φ / 0.8L Pinhead For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Acrylic texture + hidden text" is a processing example of acrylic texture + hidden text using a PCD 75-degree 0.02φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please feel free to consult us. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pinhead ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pinhead ○ 20 degrees / 0.5φ / 0.7L Pinhead ○ 20 degrees / 0.2φ / 0.8L Pinhead For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Case study of processing using our own tools: "Test case during PCD tool development - carbide" is a test case during the development of PCD tools using PCD 35 degrees / 0.4φ. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills in small lots according to customer requests. We accommodate various shapes. Please consult us first. 【Examples of Carbide End Mill Production】 ○ 0 degrees / 0.2φ / 0.3L Pin End ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin End ○ 20 degrees / 0.5φ / 0.7L Pin End ○ 20 degrees / 0.2φ / 0.8L Pin End For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our tools: "Test case during PCD tool development for quartz glass" is a test case during the development of PCD tools using a PCD 30-degree / 0.04φ & 0.3φ drill. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills in small lots according to customer requests. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Challenging the processing of steel materials - Processing examples from the early stages of development" are test cases from the development of PCD tools at 12 degrees / 0.08φ. Mitsui Marking Co., Ltd. utilizes the know-how cultivated in fine engraving to produce fine end mills tailored to customer requests in small lots. We accommodate various shapes. Please consult us first. 【Examples of Carbide End Mill Production】 ○ 0 degrees / 0.2φ / 0.3L Pinhead ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pinhead ○ 20 degrees / 0.5φ / 0.7L Pinhead ○ 20 degrees / 0.2φ / 0.8L Pinhead For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Fine engraving of aluminum" is an example of fine engraving of aluminum using a carbide tool at 20 degrees/0.2φ. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to produce fine end mills tailored to customer requests in small quantities. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees/0.2φ/0.3L Pin end ○ 0 degrees/0.3φ/0.6L Ball ○ 10 degrees/0.2φ/0.5L Pin end ○ 20 degrees/0.5φ/0.7L Pin end ○ 20 degrees/0.2φ/0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Two-dimensional shape processing of sialon" refers to examples of two-dimensional shape processing of sialon using PCD 0.3φ and 1.0φ, among others. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills in small lots according to customer requests. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our tools: "Mobile phone mold (6 shapes) made of NAK80" is a processing example of a mobile phone mold (6 shapes) made of NAK80 using CBN 0.3R. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to produce fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Sculpting of pure copper" is an example of sculpting pure copper using CBN 0.2R. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to produce fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our tools: "Fine grooves of Sumika Super S1000" are processing examples of fine grooves of Sumika Super S1000 using CBN 0.27φ. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the field of fine engraving to produce fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Case study of processing using our own tools: The "electrode for copper engraving" is a processing example of a copper engraving electrode using a carbide burr-free tool with a diameter of 0.055 mm. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please feel free to consult with us. 【Examples of Carbide End Mill Production】 ○ 0 degrees / 0.2 mm / 0.3L - Pin head ○ 0 degrees / 0.3 mm / 0.6L - Ball ○ 10 degrees / 0.2 mm / 0.5L - Pin head ○ 20 degrees / 0.5 mm / 0.7L - Pin head ○ 20 degrees / 0.2 mm / 0.8L - Pin head For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our tools: "Stair carving of silicon carbide (SiC)" is a processing example of stair carving of silicon carbide (SiC) using a PCD 1.3φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills tailored to customer requirements in small lots. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of machining using our own tools: "Pocket machining of alumina 99.5" is a case of pocket machining of alumina 99.5 using a PCD 0.6φ tool. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills tailored to customer requests, starting from small lots. We can accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L - Pin end ○ 0 degrees / 0.3φ / 0.6L - Ball ○ 10 degrees / 0.2φ / 0.5L - Pin end ○ 20 degrees / 0.5φ / 0.7L - Pin end ○ 20 degrees / 0.2φ / 0.8L - Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Zirconia pocket machining" is an example of pocket machining of zirconia (ZrO2) using PCD 0.2φ, among others. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in the fine engraving industry to manufacture fine end mills tailored to customer requests in small lots. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools

Examples of processing using our own tools: "Groove processing of silicon nitride (SiN)" is an example of groove processing of silicon nitride (SiN) using a PCD 1.0φ. Mitsui Engraving Co., Ltd. utilizes the know-how cultivated in fine engraving to manufacture fine end mills tailored to customer requests in small lots. We accommodate various shapes. Please consult us first. 【Examples of carbide end mill production】 ○ 0 degrees / 0.2φ / 0.3L Pin end ○ 0 degrees / 0.3φ / 0.6L Ball ○ 10 degrees / 0.2φ / 0.5L Pin end ○ 20 degrees / 0.5φ / 0.7L Pin end ○ 20 degrees / 0.2φ / 0.8L Pin end For more details, please contact us or download the catalog.

• End Mills
• Other cutting tools