Safety Precautions and Usage Guidelines

The document stresses strict adherence to safety measures when using Nakanishi tools. Essential personal protective equipment includes safety glasses, masks, and face guards. Users must thoroughly read and retain operation manuals. Key safety practices involve avoiding contact with tools during operation, maintaining a clean and well-lit workspace, prohibiting use near flammable substances, and ensuring tools have completely stopped before handling.

Proper tool selection based on application, material, and procedure is critical. Workpieces must be securely clamped, and operators should avoid loose clothing or accessories and secure long hair. Tools and chucks require inspection and cleaning to prevent slippage and injury. Overhang limits and maximum allowable speeds must be respected, with speed reductions mandated for overhangs exceeding 13 mm. Damaged cords or hoses are prohibited. Tools should start at low speeds, gradually increasing to safe operating speeds. Tools must be stored in cool, dry places and inspected for defects before use. Work must stop immediately if abnormal sounds or vibrations occur, resuming only after resolution. Only genuine Nakanishi attachments and consumables are recommended. Excessive pressure or prying with tools is forbidden to avoid damage and inefficiency.

Tool Specifications and Product Series

The catalog covers a wide range of tools including Diamond/CBN burs, carbide cutters, specialty tools, mounted points, rubberized abrasives, flap wheels, polishing brushes, felt bobs, abrasive compounds, and polishing tools. Tools are categorized by shank diameter (commonly 1.6 mm, 2.34 mm, 3.0 mm) and available in various package quantities (1, 5, or 10 pieces).

Maximum allowable rotational speeds vary by tool type and size, ranging from 20,000 min-1 to 320,000 min-1. Speed adjustments are required based on overhang length, with a provided table to guide reductions.

Abrasive Grain Types and Applications

Diamond abrasives are ideal for grinding non-ferrous metals, ceramics, glass, plastics, and hard brittle materials such as carbide alloys and stone. CBN abrasives are suited for hardened steels, alloy steels, tool steels, stainless steel, and heat-resistant alloys. The document details specific materials appropriate for each abrasive type, emphasizing their effectiveness in precision grinding, engraving, burr removal, and fine finishing.

Product Coding and Ordering Information

Each tool is identified by catalog number, shank diameter, grit size, and package quantity. Grit sizes correspond to abrasiveness levels from rough to mirror polishing, indicated by numeric grit codes. Standard package quantities are recommended for ordering. Specifications and colors may change without prior notice.

Symbols and Notations

The catalog uses symbols to denote shank diameters, grit sizes, and maximum speeds. Correct collet size usage for micro grinders is emphasized to ensure precision. Speed limits assume an overhang less than 13 mm; speed reductions are required for longer overhangs.

Summary of Critical Parameters and Best Practices

• Always wear appropriate personal protective equipment.
• Read and retain operation manuals.
• Maintain a clean, well-lit, and safe work environment.
• Secure workpieces firmly; avoid loose clothing or accessories.
• Inspect and clean tools and chucks before use to prevent slippage.
• Respect maximum allowable speeds and adjust for overhang length.
• Start tools at low speed and increase gradually.
• Use only genuine Nakanishi parts and consumables.
• Stop work immediately if abnormal tool behavior occurs.
• Store tools properly to maintain condition.

Overview of Product Categories and Specifications

• Diamond and CBN Mounted Points: Available with 3.0 mm and 6.0 mm shanks, diameters from 0.3 mm to over 13 mm, grit sizes #100 to #600. Maximum speeds range from 20,000 to 105,000 min-1. Designed for durability and precision burr removal.
• Carbide Cutters: Titanium-coated for extended life and reduced loading. Various cut types (Single Cut, Chip Breaker, Double Cut, Diamond Cut) with shanks mainly 3.0 mm and 6.3 mm, lengths 38–53 mm. Operating speeds 40,000 to 80,000 min-1.
• Vitrified/Resin Bonded Diamond and CBN Bars: 6.0 mm shank diameter, for high-precision grinding, speeds up to 85,000 min-1, grit size around #170.
• Specialty Tools and Sets: Assorted mounted points and cutters in sets for applications like engraving, deep hole grinding, and jig grinding.

Key Technical Parameters

• Shank diameters predominantly 3.0 mm and 6.0 mm; some specialized sizes like 2.34 mm.
• Tool diameters range from 0.3 mm to 20 mm, supporting fine detail to larger surface grinding.
• Maximum rotational speeds vary by tool size/type: 20,000 min-1 (larger tools) to 105,000 min-1 (small, high-precision tools).
• Abrasive grit sizes include #100, #120, #140, #150, #170, #200, #220, #230, #270, #320, #600; finer grits for finishing, coarser for aggressive removal.

Tool Features and Applications

• Diamond and CBN abrasives offer high hardness and durability for grinding hard metals, ceramics, and composites.
• Carbide cutters with titanium coating reduce loading and extend tool life; various cut designs optimize performance for rubbers, plastics, aluminum, magnesium alloys, and hard rubbers.
• Long shank tools (3.0 mm diameter) enable deep hole and groove grinding with precision.
• Small diameter tools (3.0 mm and below) are suited for engraving and hobbyist applications.

Packaging and Ordering

• Standard package quantities typically 1 pc. per pack or sets of 3 to 18 pieces.
• Assorted sets facilitate selection for varied applications.
• Product codes enable precise ordering and inventory management.

Operational Recommendations and Limitations

• Observe maximum rotational speeds for safety and performance.
• Match grit size and cut type to material and finish requirements.
• Titanium-coated carbide cutters recommended for materials prone to loading.
• Deep helix and chip breaker designs improve chip clearance and cutting efficiency.

Summary Table of Critical Parameters

Conclusion

This catalog offers comprehensive technical data and ordering details for a broad spectrum of high-precision abrasive tools. The diversity in tool diameters, shank sizes, abrasive types, and cut designs enables users to select optimal tools tailored to specific materials and machining needs, ensuring operational efficiency, precision, and extended tool life.