Looking for the best parting insert for non-ferrous plastics? We’ve compiled a list of top 10 options to help you achieve clean, precise cuts with ease.
Parting inserts are essential tools for cutting non-ferrous materials, plastics, and aluminium. They ensure clean, precise cuts without interruptions. Choosing the right insert can save time and reduce waste.
The THINBIT ‘L’ Series and LITTLEBIT ‘S’ Series are top choices for these tasks. They feature uncoated carbide for durability and precision. Their narrow widths minimize material loss and part deflection.
These inserts work seamlessly with Large and Small series toolholders. They are perfect for precious metals, thin tubing, and small parts. Dive in to find the best parting insert for your needs!
List of Top 10 Parting Insert For Non-Ferrous Plastics
| Image | Title | Best For | Price |
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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 3 Pack LGPT045D5R 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 LGPT062D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT 3 Pack LGPT062D5R 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 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, 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 LGPT045D57L ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT parting insert 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 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, 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 parting insert is perfect for anyone working with non-ferrous metals, aluminum, 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 LGPT062D5R7R ‘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 LGPT025D5 ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT parting insert 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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3 Pack SPT025D5 THINBIT LITTLEBIT ‘S’ Series Parting Insert, Uncoated Carbide for Non-Ferrous alloys, Aluminium, Plastic no Interrupted cuts |
This 3 Pack SPT025D5 THINBIT LITTLEBIT ‘S’ Series Parting Insert 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 LGPT115D57R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts |
This THINBIT 3 Pack LGPT115D57R 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. |
Detailed Reviews
Discover the top 10 parting inserts for non-ferrous plastics, 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 material efficiency, this guide has you covered. Dive in to find the best parting insert tailored to your needs.
1. THINBIT 3 Pack LGPT045D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT045D5R 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.
Narrow widths reduce material loss and part deflection. It works well with precious metals, thin wall tubing, and small parts. Cuts flush to the collet face or shoulder easily.
This insert is uncoated DURA-MAX 5000 carbide, ensuring durability and precision. It handles solid stock up to 1.000″ and tubing walls up to .500″. Ideal for smooth, efficient parting.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT045D5R 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?
2. 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 works best for solid stock and tubing without interrupted cuts. This uncoated carbide insert is part of the ‘L’ Series, known for precision and durability.
Its narrow widths reduce material loss and part deflection, making it ideal for precious metals and thin-walled parts. It cuts flush to the collet face or shoulder, ensuring clean, accurate results.
Use it with Large series toolholders for straight or 90-degree cuts. Perfect for small diameter parts and tubing up to .500″ wall thickness. Check the Downloads section for detailed specs and compatible tools.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT062D5R 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?
3. THINBIT 3 Pack LGPT025D5R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT025D5R is a parting insert designed for non-ferrous alloys, aluminium, and plastic. It features uncoated DURA-MAX 5000 carbide for smooth, uninterrupted cuts. This insert is perfect for precise work.
Narrow widths reduce material loss and part deflection. It cuts flush to the collet face or shoulder on the main spindle side. Use it for parting solid stock up to .400″ or tubing with walls up to .200″.
Check the Downloads section for detailed product info and compatible toolholders. Use with Large series toolholders and RH straight or LH 90-degree options. This insert is ideal for precious metals and small parts.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT025D5R 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 LGPT045D57L ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT045D57L is a parting insert designed for non-ferrous alloys, aluminium, and plastic. It’s perfect for precise cuts without interruptions, reducing material waste.
Use it with large series toolholders or any straight/90-degree holder. It’s ideal for thin walls, small parts, and precious metals.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert 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?
5. THINBIT 3 Pack LGPT045D5R7R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

THINBIT’s LGPT045D5R7R parting insert is perfect for cutting non-ferrous alloys, aluminium, and plastic. It works best with Large series toolholders and handles solid stock up to 1.000″ or tubing with walls up to .500″.
Its narrow design reduces waste and part bending, making it ideal for precious metals, thin tubing, and small parts. It cuts flush to the collet face or shoulder on either the main or sub-spindle side.
Uncoated DURA-MAX 5000 carbide ensures smooth, uninterrupted cuts. Use with RH straight or LH 90-degree toolholders. Check the Downloads section for more details.
| 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?
6. THINBIT 3 Pack LGPT045D5 ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT045D5 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.
Narrow widths reduce material loss and part deflection. It cuts within .062″ of the collet face or shoulder. Works with solid stock up to 1.000″ and tubing walls up to .500″.
Check the Downloads section for detailed product info and compatible toolholders. This uncoated carbide insert is ideal for precious metals, thin wall tubing, and small parts.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert is perfect for anyone working with non-ferrous metals, aluminum, or plastic. It’s ideal for cutting thin materials like precious metals, tubing, or small parts without wasting material.
Ready to Purchase?
7. THINBIT 3 Pack LGPT062D5R7R ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT062D5R7R is a parting insert designed for non-ferrous alloys, aluminium, and plastic. It’s perfect for clean, uninterrupted cuts.
Narrow widths reduce material loss and part deflection. It’s ideal for precious metals, thin wall tubing, and small parts. Works with M03 or M04 spindle sides.
Use it for solid stock up to 1.000″ or tubing with .500″ walls. Made with uncoated DURA-MAX 5000 carbide. Pair with Large series toolholders.
| 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?
8. THINBIT 3 Pack LGPT025D5 ‘L’ Series, Uncoated Carbide, Parting Insert for Non-Ferrous Alloys, Aluminium and Plastic Without Interrupted Cuts

The THINBIT 3 Pack LGPT025D5 is a parting insert designed for non-ferrous alloys, aluminium, and plastic. It works best for solid stock and tubing without interrupted cuts. Use it with Large series toolholders for precise cuts.
Its narrow widths reduce material loss and part deflection, making it ideal for precious metals and small parts. It cuts within .073″ of the collet face or shoulder, ensuring accuracy.
The uncoated DURA-MAX 5000 carbide insert handles non-ferrous materials with ease. It’s perfect for parting up to .400″ solid stock or .200″ tubing walls. Use any straight or 90-degree toolholder for flexibility.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT parting insert 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. 3 Pack SPT025D5 THINBIT LITTLEBIT ‘S’ Series Parting Insert, Uncoated Carbide for Non-Ferrous alloys, Aluminium, Plastic no Interrupted cuts

The SPT025D5 THINBIT LITTLEBIT ‘S’ Series Parting Insert is a 3-pack of uncoated carbide inserts. They are designed for cutting non-ferrous alloys, aluminium, and plastic.
Narrow widths reduce waste and part bending. Perfect for small parts and precious metals. Cuts close to the collet face or shoulder. Handles solid stock up to .400″ and tubing walls up to .200″.
Made with DURA-MAX 5000 carbide for durability. Use with Small series toolholders. See downloads for detailed info.
| Pros | Cons |
|---|---|
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Perfect For:
This 3 Pack SPT025D5 THINBIT LITTLEBIT ‘S’ Series Parting Insert 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?
10. 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 a parting insert designed for non-ferrous alloys, aluminium, and plastic. It’s perfect for clean, uninterrupted cuts.
Narrow widths reduce material loss and part deflection. It’s ideal for precious metals, thin wall tubing, and small parts. Cuts within .028″ of the collet face or shoulder.
Use it for parting solid stock up to 1.000″ or tubing with walls up to .500″. Works with Large series toolholders and any straight or 90-degree holder.
| Pros | Cons |
|---|---|
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Perfect For:
This THINBIT 3 Pack LGPT115D57R 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?
Buying Guide
Need clean cuts on non-ferrous metals, plastics, or aluminum? Parting inserts are your secret weapon. Choosing the right one saves time, reduces waste, and ensures precision.
Factors to Consider When Buying Parting Inserts:
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Material Compatibility: Ensure the insert is designed for non-ferrous alloys, aluminum, or plastic.
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Insert Width: Narrow widths minimize material loss and part deflection, ideal for thin walls and small parts.
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Coating: Uncoated carbide offers durability and precision for these materials.
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Toolholder Compatibility: Match the insert to your Large or Small series toolholders for a secure fit.
Cutting Depth: Choose an insert that can handle the thickness of your material, whether solid stock or tubing walls. -
Cutting Style: Consider if you need straight, 90-degree, or flush cuts to the collet face or shoulder.
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Application: Think about the specific materials you work with, like precious metals or thin tubing, to find the best insert for the job.