Looking for the best plastic parting inserts? We’ve curated a list of 10 top-quality options to help you achieve clean, precise cuts with ease.
Plastic parting inserts are essential tools for achieving clean, precise cuts in non-ferrous materials like aluminum, plastic, and composites. Whether you’re working on small parts, thin tubing, or precious metals, the right insert can make all the difference.
These inserts are designed to reduce material waste and minimize part deflection, ensuring reliable performance every time. With options in carbide and high-speed steel, you’ll find the perfect fit for your cutting needs.
List of Top 10 Plastic Parting Inserts
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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 LGPT025D5R ‘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, or small parts without wasting material. |
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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 |
This THINBIT parting insert is perfect for anyone cutting plastics, composites, or working in tough conditions. It’s ideal for low RPM cutting and narrow, precise cuts on precious metals, thin tubing, or small parts. |
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THINBIT 3 Pack LGPT025HSR ‘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 anyone working with plastics, composites, or cutting in tough conditions. It’s ideal for low RPM cutting and narrow cuts, making it great for precious metals, thin tubing, or small parts. |
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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, 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 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 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 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 LGPT085HSR7R ‘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 anyone cutting plastics, composites, or working in tough conditions. It’s ideal for low RPM cutting and reduces material loss, making it great for precious metals, thin tubing, or small parts. |
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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 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. |
Detailed Reviews
Discover the top 10 Plastic Parting Inserts handpicked for precision, durability, and value. Whether you’re cutting plastics, composites, or non-ferrous alloys, this guide ensures you find the perfect fit for your needs. Dive in to explore expert-approved tools that deliver clean cuts and reliable performance every time.
1. 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.
Narrow widths reduce material loss and part deflection. It’s ideal for precious metals, thin tubing, and small parts. Works with M03 or M04 for flush cuts.
Made with uncoated DURA-MAX 5000 carbide, it handles solid stock up to 1.000″ and tubing walls up to .500″. Use RH straight or LH 90-degree toolholders for smooth parting.
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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?
2. 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 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 thin wall tubing, this insert delivers reliable performance every time.
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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, or small parts without wasting material.
Ready to Purchase?
3. 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 a high-speed steel parting insert designed for precision cutting. It’s perfect for plastics, composites, and tough cutting conditions. Use it for low RPM cutting with ease.
Narrow widths reduce waste and part movement. It cuts flush to the collet face or shoulder. Works with M03 or M04 spindle sides.
This insert is ideal for solid stock up to 1.000″ and tubing with walls up to .500″. Use it with Large series toolholders for straight or 90-degree cuts. Check the Downloads section for more details.
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Perfect For:
This THINBIT parting insert is perfect for anyone cutting plastics, composites, or working in tough conditions. It’s ideal for low RPM cutting and narrow, precise cuts on precious metals, thin tubing, or small parts.
Ready to Purchase?
4. THINBIT 3 Pack LGPT025HSR ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting
The THINBIT 3 Pack LGPT025HSR is a high-speed steel parting insert designed for tough cutting jobs. It works well with plastics, composites, and low RPM cutting. Use it in abusive cutting conditions for reliable results.
Its narrow widths reduce material loss and part deflection. It’s perfect for precious metals, thin tubing, and small parts. Cuts flush to the collet face or shoulder for precision.
Use it with Large series toolholders and RH straight or LH 90-degree holders. Works for parting solid stock up to .400″ or tubing with walls up to .200″. Check the Downloads section for detailed product info.
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Perfect For:
This THINBIT parting insert is perfect for anyone working with plastics, composites, or cutting in tough conditions. It’s ideal for low RPM cutting and narrow cuts, making it great for precious metals, thin tubing, or small parts.
Ready to Purchase?
5. 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 features uncoated DURA-MAX 5000 carbide for smooth, uninterrupted cuts.
Use it with Large series toolholders for solid stock up to 1.000″ or tubing with walls up to .500″. Its narrow width reduces material loss and part deflection, making it ideal for precious metals and small parts.
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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 works best for solid stock up to 1.000″ or tubing with walls up to .500″. Its narrow widths reduce waste and part bending, making it ideal for precious metals and small parts.
Use it with Large series toolholders or any straight/90-degree holder. The uncoated DURA-MAX 5000 carbide ensures smooth cuts without interruptions.
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Perfect For:
This THINBIT 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?
7. 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 parting insert designed for non-ferrous alloys, aluminium, and plastic. It features uncoated DURA-MAX 5000 carbide for smooth, uninterrupted cuts.
Use it with Large series toolholders for solid stock up to 1.000″ or tubing with walls up to .500″. Narrow widths reduce material loss and part deflection, making it ideal for precious metals and small parts.
| 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 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 cuts without interruptions. Use it with Large series toolholders for best results.
Narrow widths reduce material loss and part deflection. Ideal for precious metals, thin tubing, and small parts. Works with M03 or M04 for flush cuts.
This uncoated carbide insert handles solid stock up to 1.000″ and tubing walls up to .500″. Use RH straight or LH 90-degree toolholders for precise parting.
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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?
9. THINBIT 3 Pack LGPT085HSR7R ‘L’ Series, Uncoated High Speed Steel, Parting Insert for Plastics, Composites, Abusive Cutting Conditions and Low RPM Cutting
The THINBIT 3 Pack LGPT085HSR7R is a high-speed steel parting insert designed for cutting plastics, composites, and tough materials. It’s perfect for low RPM cutting and abusive conditions. Use it with Large series toolholders for best results.
Narrow widths reduce waste and part movement. It cuts flush to the collet face or shoulder. Works with M03 or M04 spindle sides.
This insert is ideal for parting solid stock up to 1.000″ or tubing with walls up to .500″. Check the Downloads section for detailed info and compatible toolholders.
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Perfect For:
This THINBIT parting insert is perfect for anyone cutting plastics, composites, or working in tough conditions. It’s ideal for low RPM cutting and reduces material loss, making it great for precious metals, thin tubing, or small parts.
Ready to Purchase?
10. 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 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 within .062″ of the collet face or shoulder, ensuring precision.
Uncoated DURA-MAX 5000 carbide ensures durability. Works with straight or 90-degree toolholders. Check the Downloads section for detailed info.
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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?
Buying Guide
Plastic parting inserts help you make clean, precise cuts in materials like aluminum, plastic, and composites. They reduce waste and ensure reliable performance. Choosing the right one depends on your material and cutting needs.
Factors to Consider When Buying Plastic Parting Inserts:
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Material Compatibility:
Choose inserts designed for your material. Carbide works well for non-ferrous alloys, aluminum, and plastic. High-speed steel is better for plastics, composites, and tough cutting conditions. -
Cutting Requirements:
Consider the type of cuts you need. Narrow widths reduce material loss and part deflection, ideal for precious metals and thin tubing. Flush cuts are best for small parts and precise work. -
Toolholder Compatibility:
Ensure the insert works with your toolholder. Large series toolholders are commonly used for straight or 90-degree cuts. Check compatibility for smooth parting. -
Cutting Conditions:
For low RPM cutting or abusive conditions, high-speed steel inserts are a better choice. Carbide inserts handle higher speeds and solid stock more efficiently. -
Precision Needs:
If you need clean, accurate cuts, look for inserts that cut flush to the collet face or shoulder. Narrow widths ensure minimal material loss and part movement. -
Durability:
Uncoated carbide like DURA-MAX 5000 offers durability for uninterrupted cuts. High-speed steel is more forgiving in tough conditions but may wear faster. -
Part Size:
Match the insert to your part size. Smaller inserts are ideal for thin tubing and small parts, while larger ones handle solid stock up to 1.000″.