Looking for the best parting insert for plastic? We’ve curated a list of top picks to help you achieve precision and durability in your projects.
Finding the best parting insert for plastic can be a game-changer for your projects. Whether you’re working with plastics, composites, or delicate materials, the right tool makes all the difference. We’ve got you covered with top picks that deliver precision and durability.
These inserts are designed for tough conditions, ensuring clean cuts every time. They work great with low RPMs and narrow widths, reducing waste and saving material. Perfect for precious metals and thin-walled tubing.
Ready to upgrade your cutting experience? Dive in to discover the perfect parting insert that meets your needs. Let’s make your work smoother and more efficient!
List of Top 10 Parting Insert For Plastic
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THINBIT 3 Pack LGPT062HSR ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting |
The THINBIT 3 Pack LGPT062HSR is perfect for machinists and manufacturers working with plastics, composites, and thin materials. It’s ideal for low RPM cutting and abusive conditions, making it a reliable choice for precise, efficient cuts. |
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THINBIT 3 Pack LGPT045D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like tubing or small parts with minimal waste. |
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THINBIT 3 Pack LGPT062D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material. |
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THINBIT 3 Pack LGPT045D5 ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT 3 Pack LGPT045D5 is perfect for anyone working with non-ferrous alloys, aluminium, or plastic. It’s ideal for cutting thin materials like precious metals, tubing, or small parts without wasting material. |
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THINBIT 3 Pack LGPT025D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT 3 Pack LGPT025D5R is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material. |
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THINBIT 3 Pack LGPT045D5R7R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material. |
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THINBIT 3 Pack LGPT045D57L ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT 3 Pack LGPT045D57L is perfect for machinists and manufacturers working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts with precision and minimal waste. |
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THINBIT 3 Pack LGPT115D57R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
The THINBIT 3 Pack LGPT115D57R is perfect for machinists and manufacturers working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts with minimal waste. |
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THINBIT 3 Pack LGPT085HS ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting |
This THINBIT parting insert is perfect for cutting plastics, composites, and materials under tough conditions. It’s also great for low RPM cutting and works well with precious metals, thin tubing, and small parts. |
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THINBIT 3 Pack LGPT062HS ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting |
This THINBIT parting insert is perfect for cutting plastics, composites, and thin materials under tough conditions. It’s ideal for low RPM cutting and works great with precious metals, thin tubing, and small parts. |
Detailed Reviews
Discover the top 10 parting inserts for plastic, carefully selected based on expert reviews and customer feedback. Each product is evaluated for performance, durability, and value, ensuring you find the perfect fit. Whether you need precision cuts or cost-effective solutions, this guide has you covered. Dive in to find the best parting insert tailored to your needs.
1. THINBIT 3 Pack LGPT062HSR ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting

THINBIT’s 3-pack of parting inserts is a cutting-edge solution for precision work. These high-speed steel inserts are uncoated and designed for tough cutting conditions, making them ideal for plastics, composites, and low RPM cutting.
Narrow widths minimize material waste, and they’re perfect for delicate tasks like working with precious metals or thin-walled tubing. Use them with large series toolholders for parting solid stock or tubing with ease.
| Pros | Cons |
|---|---|
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Perfect For:
The THINBIT 3 Pack LGPT062HSR is perfect for machinists and manufacturers working with plastics, composites, and thin materials. It’s ideal for low RPM cutting and abusive conditions, making it a reliable choice for precise, efficient cuts.
Ready to Purchase?
2. THINBIT 3 Pack LGPT045D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

THINBIT’s 3-pack parting inserts are designed for precision cutting. They work best with non-ferrous alloys, aluminium, and plastic.
Narrow widths save material and reduce part movement. Cuts flush to collet face or shoulder. Use with M03 or M04 for perfect results.
Uncoated DURA-MAX 5000 carbide ensures durability. Compatible with Large series toolholders. Ideal for solid stock up to 1.000″ or tubing with .500″ walls.
| Pros | Cons |
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Perfect For:
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like tubing or small parts with minimal waste.
Ready to Purchase?
3. THINBIT 3 Pack LGPT062D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT062D5R is a parting insert designed for non-ferrous alloys, aluminium, and plastic. It’s perfect for clean cuts without interruptions. Use it with Large series toolholders for best results.
Its narrow widths reduce material loss and part deflection, making it ideal for precious metals, thin wall tubing, and small parts. It cuts flush to the collet face or shoulder on either the main spindle or sub-spindle.
Uncoated DURA-MAX 5000 carbide ensures durability. Works with RH straight or LH 90-degree toolholders. Check the Downloads section for detailed info.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material.
Ready to Purchase?
4. THINBIT 3 Pack LGPT045D5 ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

THINBIT’s LGPT045D5 parting insert is perfect for cutting non-ferrous alloys, aluminium, and plastic. Its narrow design reduces material waste and part bending. Use it for solid stock up to 1.000″ or tubing with walls up to .500″.
Made from uncoated DURA-MAX 5000 carbide, this insert handles smooth, uninterrupted cuts with ease. It works within .062″ of the collet face or shoulder, making it ideal for precious metals and small parts. Pair it with Large series toolholders for best results.
Check the Downloads section for detailed product info and compatible toolholders. Use any straight or 90-degree toolholder for flexibility. This insert is a reliable choice for precision cutting.
| Pros | Cons |
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Perfect For:
This THINBIT 3 Pack LGPT045D5 is perfect for anyone working with non-ferrous alloys, aluminium, or plastic. It’s ideal for cutting thin materials like precious metals, tubing, or small parts without wasting material.
Ready to Purchase?
5. THINBIT 3 Pack LGPT025D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

THINBIT’s 3-pack parting inserts are designed for precision cutting. These uncoated carbide inserts are ideal for non-ferrous materials, offering clean, efficient cuts.
Perfect for narrow cuts, they minimize material waste. Use with large series toolholders for parting solid stock or tubing. RH straight or LH 90-degree toolholders are compatible.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT025D5R is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material.
Ready to Purchase?
6. THINBIT 3 Pack LGPT045D5R7R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT045D5R7R is a reliable cutting tool. It’s designed for non-ferrous alloys, aluminium, and plastic. Use it for clean, precise cuts.
Its narrow widths reduce waste and part movement. It works well with precious metals and thin materials. Use it for solid stock or tubing up to specific sizes.
This uncoated carbide insert is durable and efficient. Pair it with Large series toolholders. It’s a smart choice for smooth operations.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert is perfect for machinists working with non-ferrous alloys, aluminum, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts without wasting material.
Ready to Purchase?
7. THINBIT 3 Pack LGPT045D57L ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT045D57L is a reliable cutting tool. It’s designed for non-ferrous alloys, aluminium, and plastic. Use it for clean, precise cuts.
Its narrow widths reduce waste and part bending. It works well with precious metals and thin materials. Cuts are made close to the collet face or shoulder.
This uncoated carbide insert is durable and efficient. It’s compatible with large series toolholders. Perfect for solid stock or tubing up to 1.000″.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT045D57L is perfect for machinists and manufacturers working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts with precision and minimal waste.
Ready to Purchase?
8. THINBIT 3 Pack LGPT115D57R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

THINBIT’s LGPT115D57R parting insert is perfect for cutting non-ferrous alloys, aluminium, and plastic. Its narrow design reduces waste and works well with thin materials. Use it with large series toolholders for precise cuts.
This uncoated carbide insert handles solid stock up to 1.000″ and tubing walls up to .500″. It cuts within .028″ of the collet face, making it ideal for precious metals and small parts.
| Pros | Cons |
|---|---|
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Perfect For:
The THINBIT 3 Pack LGPT115D57R is perfect for machinists and manufacturers working with non-ferrous alloys, aluminium, and plastic. It’s ideal for cutting thin materials like precious metals, tubing, and small parts with minimal waste.
Ready to Purchase?
9. THINBIT 3 Pack LGPT085HS ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting

THINBIT’s LGPT085HS parting insert is a specialized tool for cutting plastics, composites, and more. It handles tough conditions and low RPMs with ease. Uncoated high-speed steel ensures durability and precision.
This insert is perfect for narrow cuts, reducing material waste and part deflection. It works well with precious metals and thin-walled tubing. Cuts can be made within 0.043″ of the collet face.
Use it with large series toolholders, either straight or 90-degree. It’s ideal for parting solid stock up to 1.000″ or tubing with walls up to 0.500″. Check the Downloads section for detailed specs and compatible tools.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert is perfect for cutting plastics, composites, and materials under tough conditions. It’s also great for low RPM cutting and works well with precious metals, thin tubing, and small parts.
Ready to Purchase?
10. THINBIT 3 Pack LGPT062HS ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting

The THINBIT 3 Pack LGPT062HS is a high-speed steel parting insert designed for precision cutting. It works well with plastics, composites, and tough cutting conditions. Use it for low RPM cutting too.
Narrow widths reduce waste and part bending. It cuts close to the collet face or shoulder. Perfect for precious metals, thin tubing, and small parts.
Works with Large series toolholders. Use any straight or 90-degree holder. Ideal for parting solid stock up to 1.000″ or tubing with walls up to .500″.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert is perfect for cutting plastics, composites, and thin materials under tough conditions. It’s ideal for low RPM cutting and works great with precious metals, thin tubing, and small parts.
Ready to Purchase?
Buying Guide
Finding the best parting insert for plastic is easy with the right guide. Let’s make your cutting tasks smoother and more efficient.
Engaging Experience:
Choosing the perfect parting insert can transform your work. With the right tool, you’ll enjoy clean cuts, less waste, and better results.
Factors to Consider When Buying:
– Material Compatibility: Ensure the insert works well with plastics, composites, or metals. Check if it’s designed for your specific material.
– Cutting Conditions: Look for inserts that handle tough conditions or low RPMs if needed. This ensures durability and precision.
– Width and Design: Narrow widths reduce waste and are ideal for thin materials or small parts. Choose based on your project needs.
– Toolholder Compatibility: Make sure the insert fits your toolholder type, like large series or straight/90-degree holders.
– Coating and Material: Decide between uncoated carbide for durability or high-speed steel for specific tasks. Each has its strengths.
– Cutting Depth: Check how close the insert cuts to the collet face or shoulder. This is key for precise work.
– Application: Consider if it’s for solid stock, tubing, or delicate materials like precious metals.