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“SOLOTERU” Metal Grinding Wheel with Uniform Distribution of Abrasive Grains


The use of a technique for ensuring an even distribution of abrasive grains within the abrasive layer delivers improved cutting performance together with long life compared to the metal tools traditionally used for machining precision components and mechanical parts made from ceramics and similar materials. The superiority to other tools also includes enhanced cutting performance when machining hard brittle materials and other special materials thanks to the ultra-thin cutting edge of the abrasive layer, with benefits that include minimizing the cutting load and reducing chipping.


A single-pointed dresser mounted with a synthetic mono-crystalline diamond on the tip and with a cutting edge produced through grinding. Offers a more stable dressing performance compared to natural diamond dressers. The cutting edge can be replaced with pyramid-shaped and cone-shaped types, allowing work to be performed under the same dressing conditions as natural diamond dressers.


A diamond dresser has one or more diamonds mounted on the tip of its shank and is used for truing and dressing grinding wheels. The efficiency of grinding and finishing depends on the quality of the dresser. Asahi Diamond manufactures a broad range of diamond dressers, including:



  • Single-point dressers

  • Pyramid dressers

  • Conical dressers

  • Forming dressers

  • Multi-point dressers

  • Blade dressersBond dressers

  • Impregnated dressers



  • Single Point

  • Formed Type

  • Blade Type

  • Cone Point

  • Roller Dresser Type

PRISMA DRESSER improve’s tool life and dress quality by using polycrystalline diamond, proven to be more durable than mono-crystal synthetic diamond which is prone to cracking and shorter tool life.
Consistent diamond wear is due to consistent cross sectional area through length of the polycrystalline diamond, making it very suitable for automated dressing operations.
Various polycrystalline diamond dimensions are available to meet specific needs of each application and customer.
Polycrystalline diamond provides consistent dresser performance and ability through out the tool so no need to orient the diamond.



SUNPAX reamers are made with focus on stable quality, based on control over reamers’ key properties such as the outside diameter and run-out tolerance, using our advanced processing technologies. We can also design them to meet high-precision demands for surface finish, circularity, and coaxiality and allow rapid feeding. We satisfy your needs with our extensive product lineup from specifications to additional value types.


Thrust can be significantly reduced by switching from a conventional straight edge reamer to a helical reamer, and it allows rapid feeding and contributes to higher productivity.


We design edges for your needs to improve the efficiency of various types of processing such as milling, grooving, spot facing, and curve facing. It is also possible to make spiral types for high-speed cutting, high-precision ball shapes, and taps. Applications include high-precision and high-efficiency processing of metal molds, compressors, FRP, acrylic, and so on.


To meet the market demand for high productivity, we developed helical type drills with a diamond compact, which allows rapid feeding and reduces thrust. Also available are special types that solve exit burr and chip obstruction problems. They also allow you to integrate processes by adopting one-pass finish and multistep edges.


As a solution to chip obstruction, one of the problems in cutting, we specially treated the edge to cut chips much smaller and therefore you can avoid such troubles as chips coiling around and remaining in the workpiece.


Replacing iron and cemented carbide with diamond extends the service life of wear parts and helps reduce running costs.
・Centerless Blades (Work-Rest): SUNPAX also greatly improves accuracy and efficiency at the work-rest of a centerless grinding machine.
・Shoe & Rest: The shoe and rest are used for fixing workpieces on a grinding machine. SUNPAX used for the shoe and rest increases their accuracy and durability.
・Gauge Heads: Diamond or SUNPAX applied to gauge heads for measuring the dimensions of machined parts reduces wear and improves measuring accuracy due to its durability.


Metal bond CBN wheels are used for vertical spindle surface grinding of tool materials, fluting and gash grinding of end mills, and profile grinding in which the life and form of work pieces is essential.


Vitrified bond CBN wheels are used in the thread grinding of rolling dies, ball screws, and taps, as well as for form grinding of die punches and working tools and the grinding of machine bed surfaces.


“POWER DRY” shows remarkable performance in dry grinding of tungsten carbide.

With high-precision processing technologies using monocrystal diamond, we have produced sharp cutting edges and nano-order contour accuracy also in the ultra-precise cutting market. They are used, for example, for mirror finishing of various lens products and lens molds and nonferrous metal products.


ASPIRE POLYX wheels have achieved higher sharpness and longer service lives than conventional resin and polyx bonds for processing crustaceous materials such as carbide, ceramics, glass, and iron materials. Their flexible grinding cover grinding performances of metal or vitrified bonds and improve processing efficiency with reduced costs.


SUNBRIGHT is a monocrystal diamond cutting tool that offers ultra-precision cutting performance.
We have produced a sharp cutting edge and achieved nano-order contour accuracy using high-precision processing technology.
It can be used for mirror finishing various lens products, lens molds and non-ferrous metal products.

“AERO METAL” Super-Porous Metal Bond Wheels


AERO METAL provides significantly improved cutability compared to past metal bonds due to its porous structure (with open pores) that uses a metallic bonding material, providing easier circulation of grinding fluid and being less prone to shedding chips. It can satisfy a wide range of requirements, from ease of cutting to long life, with the chemical bond between the bond and abrasive grains helping retain these grains.

“Fine Master”


“Fine Master” resolve stock removal, clogging in Simultaneous Grinding, and abnomal wear. On the other hand, “Fine Master” enhances flatness and roughness in Mirror Grinding with high accuracy and efficiency.

“Bright Star” High Quality Lapping Elasticity Bond Wheels


Super abrasive resin wheel to expand standard working area. The feature of the bond is highly elastic & a special structure. Hard type BRS2, has hardness and toughness to grip abrasive grain.  Flexible type BRS5, is porous and soft. And both of them uses elastic resin.

A new type of bond with a special structure and high elasticity unseen in the conventional Bright Star bond, developed for the purpose of expanding the processing area of resin bond wheels for lapping, mirror finishing, polishing and other processes.


With our processing know-how and a wide selection of diamond/CBN blanks, we offer standard and custom-made products and also special-specification (chip breakers, wipers, etc.) designs and thus help you improve productivity in processing various materials (aluminum, nonferrous metals, hardened steel, cast iron ,sintered metals, etc.)


These models are economical, have CBN edges in the two corners, and therefore allow you to reduce tool costs in cutting processes.


The grinding ability of this wheel is extensively advanced by improving the element of polyx bond and making CBN abrasive grit retention stronger. As a result, it achieves outstanding performance in heavy grinding for all kinds of steel materials.


This vitrified bond CBN wheels offers extremely high machining accuracy as it is made from brittle materials. The pores in the wheel also ensure that the product has high grinding capability. The wheel can easily be shaped into the grinding form using a roller dresser (CBN type only).
Shape forming can be performed with ease using a single-point dresser. It offers higher efficiency and longer service life than normal wheels.
It is also used for grinding screws and injection parts using a formed rotary dresser.


The special paste and diluting fluid can sustain high performance over a long time even in a small volume. The SP-WO allows economic lapping and polishing processes to be conducted for every material type when diluting fluid is used appropriately. Slurry that excels in uniform dispersibility, lubricity and cooling effects allows you to take maximum advantage of diamonds’ excellent capabilities to achieve high-precision finished surfaces.


Dies can be supplied to suit a wide variety of user performance requirements, with a product range that extends from 0.008mm to 30mm and can cope with different materials and physical properties, from flexible wires such as gold wires used by the semiconductor industry to rigid wires such as steel cord.
The dies have earned a strong reputation, especially for their ability to satisfy the tight size tolerances required for ultra-thin wire and the high quality of internal surface finish in large diameters. Wire drawing dies, shaped dies, tin-coating guide dies, and single- or multi-core nipples are available in a choice of different materials to suit different applications and requirements.

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