Jul 21, 2025
To choose the right pink aluminum oxide mounted points, you should:
Identify your workpiece and its material.
Match the mounted point to your specific application.
Select the proper grit for your desired finish.
Pick the correct abrasives shape and size.
Key Takeaways
Identify your workpiece material and shape to choose the right mounted point size and type.
Match the mounted point shape and grit to your specific task like grinding, deburring, or finishing for best results.
Select the proper grit size: coarse for fast material removal, fine for smooth finishes, and use a step-by-step grit progression.
Choose the correct mounted point shape (A, B, or W) to fit your workpiece geometry and improve grinding efficiency.
Always follow safety guidelines by checking speed limits, using coolant, and inspecting tools to ensure safe and effective operation.
Pink Aluminum Oxide Mounted Points
What They Are
Pink aluminum oxide mounted points are small abrasive tools designed for precision work. You will notice their unique pink color, which comes from adding chromium oxide to alumina. This addition increases toughness and reduces friability compared to other abrasives. When you use these mounted points, you get a sharp, angular grain shape that delivers a consistent cutting action. The pink aluminum oxide grinding wheel stands out because it is harder and more aggressive than brown aluminum oxide. It also offers better cutting ability and sharper grain edges.
Pink aluminum oxide mounted points have a Knoop hardness of about 2258 kg/mm², which is higher than regular aluminum oxide.
The chromium ions in the crystal lattice make the grains tougher and more durable.
You get a product that resists wear and maintains its shape during use.
When you select the grain type, you ensure the mounted points match your needs for durability and sharpness. You should also choose the right bond, as the bond holds the abrasive grains together and affects how the tool performs.
Main Applications
You can use pink aluminum oxide mounted points in many industries. These include aerospace, medical, automotive, metal fabrication, and manufacturing. The pink aluminum oxide grinding wheel works well for grinding, deburring, honing, and surface finishing. It is especially useful for internal and external grinding tasks.
You will find these mounted points ideal for tool and die work, mold finishing, and precision grinding.
They deliver a smooth, bright finish on softer metals like aluminum, brass, and bronze.
The pink aluminum oxide grinding wheel is also popular for sharpening and finishing softer woods and painted surfaces.
Premium features make these grinding points stand out. They offer exceptional toughness, sharp cutting action, and cool cutting properties. The bond resists loading, so the mounted points do not clog easily. You can find them in many standard sizes and shank options, making them suitable for a wide range of application needs.
Selecting Mounted Points for Your Material
Identify Your Workpiece
When selecting mounted points, you first need to look closely at your workpiece. The type of material you work with—such as steel, aluminum, brass, or bronze—directly affects your choice. Each material has different hardness and responds differently to grinding or deburring. For example, aluminum is softer and can clog abrasive tools, while steel requires a tougher abrasive. You should also consider the size and shape of your workpiece. Small, intricate parts may need finer points, while larger surfaces can handle bigger mounted points.
Match to Application
After you identify your workpiece, focus on your application. Are you grinding, deburring, or finishing? Each task has its own requirements. Deburring removes sharp edges or burrs left after cutting or machining. Grinding shapes or smooths the surface. Finishing gives the final touch for a smooth appearance. You must match the suitable mounted point to your specific application for the best results.
Some important factors to consider include:
The geometry of your workpiece. Mounted points come in many shapes, such as A, B, and W. Small shapes work well for deburring tiny internal diameters. Larger points, like the W222, are great for edge breaking. Specialty points help with unique tasks, such as cleaning aircraft seat tracks.
The access needs of your project. The shape of the mounted point must fit the workpiece geometry to reach burrs and sharp edges, especially in hard-to-reach spots.
Your grinding requirements. The depth of cut, feed direction, and surface finish all play a role in choosing the right tool.
By considering these factors to consider, you ensure that your mounted points perform well and last longer. Selecting mounted points with the right shape and size for your application leads to better results and safer operation.
Select Your Grit Size
Coarse vs. Fine Grits
When you select your grit size, you make a big impact on how your pink aluminum oxide mounted points perform. The grit number tells you how coarse or fine the abrasive particles are. Lower numbers mean coarser grits, which remove material quickly. Higher numbers mean finer grits, which create smoother finishes.
You should choose the right grit size based on your grinding requirements and the hardness of your workpiece. Coarse grits, such as 8 mesh or 12 mesh, work best for rough grinding and heavier stock removal. These grits cut fast and handle tough metals. Medium grits, like 24 mesh or 36 mesh, help with semi-finishing and removing large amounts of excess material. Fine grits, such as 60 mesh or 80 mesh, are ideal for fine grinding and polishing. They give you high precision and a smooth surface, especially on softer metals.
Here is a table to help you understand the selection of grit size for different metals and tasks:
Grit Size Category
Mesh Examples
Recommended Use Case
Metal Hardness Consideration
Coarse
8 mesh, 12 mesh
Rough grinding, bottoming, rough processing
Suitable for harder metals requiring aggressive material removal
Medium
24 mesh, 36 mesh
Semi-finishing, removing large excess material
Suitable for intermediate hardness metals and semi-finishing tasks
Fine
60 mesh, 80 mesh
Fine grinding, polishing, high precision surface finishing
Suitable for softer metals or final finishing stages requiring high surface quality
You can find pink aluminum oxide mounted points in a wide range of grits, from P24 up to P1200. For example, Industrial Grinding Points 60# are popular for deburring and general grinding. Grit 19mm Aluminum Mounted Grinding Points offer precise control for finishing and polishing.
Grit and Finish Quality
The choice between coarse and fine grits affects both the speed of material removal and the quality of your surface finish. Coarser grits, such as 24 or 30, give you the highest material removal rates. These are perfect when you need to remove a lot of material quickly, such as during initial shaping or deburring. Finer grits, like 36 or 46, slow down the removal rate but help you achieve a finer finish. This relationship means that as the grit size decreases (the particles get larger), you remove more material, but the surface becomes rougher. When you use finer grits, you get a smoother finish but remove less material.
The surface finish quality on non-ferrous metals, such as aluminum and brass, depends on your grit choice. Coarse grits (40-60) work well for heavy removal and initial grinding. Medium grits (80-120) help smooth out scratches left by coarse grits. Fine grits (150-240) and very fine grits (320-400) are best for final smoothing and polishing. This progression ensures you achieve a high-quality finish.
Grit Size Category
Material Removal Rate
Surface Finish Quality
Recommended Use for Non-Ferrous Metals
Coarse (40-60)
Fast removal
Rough surface
Heavy material removal, initial grinding
Medium (80-120)
Moderate removal
Smooths scratches from coarse grit
Intermediate smoothing
Fine (150-240)
Slow removal
Smooth surface
Final smoothing and polishing
Very Fine (320-400)
Very slow removal
Very smooth, polished
Final finishing steps
You should also consider the bond of your mounted point. The bond holds the abrasive grains together and affects how the grit breaks down during use. A strong bond helps the tool last longer during heavy removal. A softer bond releases worn grains more easily, which is better for fine finishing.
When you choose the right grit size, you improve both efficiency and finish. For deburring, start with a medium or coarse grit to remove burrs quickly. For polishing, switch to a fine or very fine grit. Always match your grit to the material and the stage of your project. This careful selection helps you avoid clogging, especially on non-ferrous metals, and keeps your grinding points working at their best.
Find the Perfect Shape
Choosing the right shape and size of your mounted point is just as important as picking the correct grit. You need to match the tool to your workpiece and the job you want to do. When you find the perfect shape, you improve both grinding efficiency and the quality of your results.
Shape Groups (A, B, W)
Manufacturers classify mounted points into shape groups. The most common groups are A, B, and W. Each group has its own design and best-use scenario.
A Shape: You often use A shapes for internal diameter (ID) grinding and mold finishing. For example, the A25 shape features a 1" diameter and a 1/4" shank. It works well for grinding inside holes or tight spaces. This shape gives you excellent balance and almost no vibration, which helps you achieve smooth finishes. You can use it as a cost-effective alternative to carbide burs, especially for offhand applications.
B Shape: B shapes have a ball or rounded end. You use these when you need to reach curved surfaces or blend contours. They help you avoid sharp edges and create smooth transitions on your workpiece.
W Shape: W shapes are wheel-shaped. You use them for surface grinding, edge breaking, and flat finishing. Their design lets you cover more area quickly, which increases grinding efficiency on larger surfaces.
Pink aluminum oxide abrasives in these shapes offer outstanding durability and toughness. You can use them for precision grinding tasks like sharpening tools, finishing engine parts, or working with hardened steels and alloys. Their fine grain structure helps you achieve efficient and high-quality results, even on tough materials.
Size and Access
The size of your mounted point affects how well you can reach different areas of your workpiece. Small points let you get into tight corners, deep holes, or narrow slots. Large points work better for flat surfaces or when you need to remove more material at once.
To boost grinding efficiency, you should:
Measure the area you need to grind or finish.
Choose a mounted point that fits easily into that space.
Make sure the shank size matches your tool for safe and stable operation.
If you work on complex shapes or hard-to-reach spots, pick a smaller or more pointed shape. For open, flat surfaces, use a larger wheel or cylinder. This approach helps you maintain control and avoid damaging your workpiece.
Shape Group
Typical Use Case
Grinding Efficiency Benefit
A
ID grinding, mold finishing
Precise control, minimal vibration
B
Contour blending, curved areas
Smooth transitions, easy access to curves
W
Surface grinding, edge breaking
Fast material removal, covers large areas
You should always consider both the shape and size together. This combination lets you maximize grinding efficiency and achieve the finish you want. When you select the right mounted point, you make your work faster, safer, and more accurate.
Mounted Points Safety and Performance
Operating Speed
You must always check maximum operating speed before using any pink aluminum oxide mounted point. Each tool has a speed limit set by the manufacturer. If you run the mounted point above this speed, you risk tool breakage and possible injury. Always match the speed of your grinding machine to the rated speed of the mounted point. Never exceed this limit.
Common safety incidents include tool breakage, flying debris, and excessive wear. You can prevent these by:
Ensuring the mounted point and grinding machine are compatible in RPM and torque.
Inspecting the tool for cracks or defects before use.
Wearing safety glasses, gloves, and a dust mask to protect yourself from hazards.
Securing the mounted point tightly in the collet or chuck.
Coolant and Lubrication
Grinding generates heat. If you do not use coolant or lubrication, your mounted point can overheat. Overheating leads to faster wear, tool failure, and poor surface finish. You should apply coolant or lubricant during grinding, especially for long or heavy-duty tasks. This keeps the tool cool and extends its life. It also helps remove debris from the grinding area, which improves performance.
Some coolants are water-based, while others use oil. Choose the right type for your material and application. Always follow the manufacturer's recommendations for coolant use.
Testing and Adjustment
Before starting your project, test the mounted point on a scrap piece of material. This helps you check for vibration, balance, and cutting action. Adjust the speed and pressure as needed. If you notice any unusual noise or excessive vibration, stop and inspect the tool.
Regularly inspect your mounted points for wear or damage. Replace any tool that shows cracks, chips, or uneven wear. Proper mounting and alignment are also important. A poorly mounted tool can wobble or break during use.
Choosing the right pink aluminum oxide mounted point gives you many advantages:
You work faster and get better surface finishes.
The correct tool increases productivity and helps your tools last longer.
Matching the mounted point to your project ensures efficient and high-quality results.
You improve safety by considering shape, size, grit, and proper use.
If you need help, reach out to the experts at Yili Grinding Wheel & Abrasives Co., Ltd. Quality products make every project easier.
FAQ
What makes pink aluminum oxide different from other abrasives?
Pink aluminum oxide contains chromium oxide. This addition increases toughness and durability. You get a sharper, longer-lasting abrasive. It works well for grinding non-ferrous metals and provides a consistent finish.
Can I use pink aluminum oxide mounted points on steel?
Yes, you can use them on steel. They perform best on softer steels and non-ferrous metals. For very hard or heat-treated steels, you may want to choose a different abrasive for better results.
How do I prevent my mounted point from clogging?
Use a suitable grit size for your material. Apply light pressure and keep the tool moving. Coolant or lubricant helps reduce clogging, especially on soft metals like aluminum.
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