Economy Carbide Inserts
Install these carbide inserts into a matching holder. When a cutting edge becomes dull, rotate the insert in the holder to use a sharp edge. Larger nose angles and larger tip radii provide a stronger cutting edge but result in increased vibration and a rougher finish.
Negative-rake inserts have a 90° edge and sit at an angle in the holder to provide a strong cutting force for heavy duty applications. They have cutting edges on both sides for twice the life of comparable positive-rake inserts.
Coated inserts last longer and can be run at faster speeds than uncoated inserts.
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.



| Insert Code | For Holder Code | Finish | Inscribed Circle Dia. (IC) | Thick. | Cutting Edge Lg. | Tip Radius | Rake Type | For Cutting Operation | Each | |
For Use On Aluminum, Brass, Bronze | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | DDJN, MDJN, MDPN | Uncoated | 1/2" | 3/16" | 0.59" | 1/64" | Negative | Medium | 0000000 | 00000 |
| DNMG-432 | DDJN, MDJN, MDPN | Uncoated | 1/2" | 3/16" | 0.6" | 1/32" | Negative | Medium | 0000000 | 0000 |
For Use On Steel, Stainless Steel | ||||||||||
| DNMG-431 | DDJN, MDJN, MDPN | Titanium Nitride (TiN) Coated | 1/2" | 3/16" | 0.59" | 1/64" | Negative | Medium | 0000000 | 0000 |
| DNMG-432 | DDJN, MDJN, MDPN | Titanium Nitride (TiN) Coated | 1/2" | 3/16" | 0.6" | 1/32" | Negative | Medium | 0000000 | 0000 |
| Insert Code | For Holder Code | Finish | Inscribed Circle Dia. (IC) | Thick. | Cutting Edge Lg. | Tip Radius | Rake Type | For Cutting Operation | Pkg. Qty. | Pkg. | |
For Use On Aluminum, Brass, Bronze | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | DDJN, MDJN, MDPN | Uncoated | 1/2" | 3/16" | 0.59" | 1/64" | Negative | Medium | 10 | 00000000 | 000000 |
| DNMG-432 | DDJN, MDJN, MDPN | Uncoated | 1/2" | 3/16" | 0.6" | 1/32" | Negative | Medium | 10 | 00000000 | 00000 |
For Use On Steel, Stainless Steel | |||||||||||
| DNMG-431 | DDJN, MDJN, MDPN | Titanium Nitride (TiN) Coated | 1/2" | 3/16" | 0.59" | 1/64" | Negative | Medium | 10 | 00000000 | 00000 |
| DNMG-432 | DDJN, MDJN, MDPN | Titanium Nitride (TiN) Coated | 1/2" | 3/16" | 0.6" | 1/32" | Negative | Medium | 10 | 00000000 | 00000 |
Carbide Inserts for Multiple Materials
Choose these premium carbide inserts to turn a variety of materials without changing out your tool. They’re made of higher-quality carbide than economy inserts, so they last longer and create a smoother finish. Install them into a matching holder. For the best performance, choose an insert designed for the material of your workpiece.
Inserts with a larger nose angle and tip radius remove more material with each pass, but they cut less precisely than smaller inserts. Select the insert with the largest nose angle and tip radius that will turn your workpiece to the shape you want.
Inserts for semi-interrupted cutting conditions are used to machine imperfectly round workpieces, such as shafts with a keyway. They’re the most common type of insert. Inserts for interrupted cutting conditions are best for workpieces that will come in and out of contact with the insert, such as hex bars.
Negative-rake inserts are the first choice for most turning applications. With strong cutting edges on two faces, they last longer than comparable positive-rake inserts. When all the edges on one face are worn, flip the insert over. Positive-rake inserts stick out in front of the holder to reach tight spaces on the workpiece. However, they only have cutting edges on one side.
Medium inserts remove a moderate amount of material for a semi-smooth surface finish. Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.
Inserts with a titanium aluminum nitride (TiAlN) coating dissipate heat well, especially at high speeds. The coating reacts to high temperatures by forming a layer of aluminum oxide. This layer transfers heat to the chips, so the tool stays cool even without lubrication. Titanium nitride (TiN) coated inserts create less friction than uncoated inserts, so they last longer when run at similar speeds. Uncoated inserts are sharper than coated inserts, so they leave a better finish on softer metals, such as aluminum. They’re good for general purpose cutting and short production runs.
Inserts with chip breakers prevent long chips from forming, so they won’t block the flow of coolant or damage your tool.
Inserts sold in packs come factory sealed from the manufacturer for maximum traceability. Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.



Each | Package | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Insert Code | Inscribed Circle Dia. (IC) | Tip Radius | Thick. | Cutting Edge Lg. | Rake Type | For Cutting Operation | Finish | Features | Each | Pkg. Qty. | Pkg. | ||
For Use On Aluminum, Brass, Bronze, Cast Iron, Copper, Nickel, Plastic, Stainless Steel, Steel, Titanium | |||||||||||||
For Semi-Interrupted Cutting Conditions | |||||||||||||
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Medium | Titanium Nitride (TiN) Coated | Chip Breakers | 00000000 | 000000 | 10 | 00000000 | 0000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Medium | Titanium Nitride (TiN) Coated | Chip Breakers | 00000000 | 00000 | 10 | 0000000 | 000000 |
For Interrupted Cutting Conditions | |||||||||||||
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Positive | Medium | Uncoated | Chip Breakers | 00000000 | 00000 | 10 | 00000000 | 000000 |
For Use On Brass, Bronze, Copper, Nickel, Plastic, Stainless Steel, Steel, Titanium | |||||||||||||
For Semi-Interrupted Cutting Conditions | |||||||||||||
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Finishing | Titanium Aluminum Nitride (TiAlN) Coated | Chip Breakers | 00000000 | 00000 | 10 | 00000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Finishing | Titanium Aluminum Nitride (TiAlN) Coated | Chip Breakers | 00000000 | 00000 | 10 | 00000000 | 000000 |
Carbide Inserts for Steel
Optimized for use on steel, these inserts can run at higher cutting speeds and will last longer than inserts for multiple materials. Install inserts into a matching holder.
Inserts with a larger nose angle and tip radius remove more material with each pass but cut less precisely than smaller inserts. Select the insert with the largest nose angle and tip radius that will turn your workpiece to the desired shape.
Negative-rake inserts are the first choice for most turning applications. With strong cutting edges on two faces, they last longer than comparable positive-rake inserts. When all the edges on one face are worn, flip the insert over.
After choosing nose angle and rake type, consider roughing inserts for removing material quickly when surface finish isn’t a concern. Medium inserts remove a moderate amount of material for a semi-smooth surface finish. Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.
Inserts for semi-interrupted cutting conditions are the most commonly used, often to machine imperfectly round workpieces, such as shafts with a keyway.
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.



| Insert Code | Inscribed Circle Dia. (IC) | Tip Radius | Thick. | Cutting Edge Lg. | Rake Type | For Cutting Operation | Finish | Each | |
For Semi-Interrupted Cutting Conditions | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Finishing | Titanium Nitride (TiN) Coated | 00000000 | 000000 |
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Medium | Titanium Nitride (TiN) Coated | 0000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Finishing | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Medium | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Roughing | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| Insert Code | Inscribed Circle Dia. (IC) | Tip Radius | Thick. | Cutting Edge Lg. | Rake Type | For Cutting Operation | Finish | Pkg. Qty. | Pkg. | |
For Semi-Interrupted Cutting Conditions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Finishing | Titanium Nitride (TiN) Coated | 10 | 00000000 | 0000000 |
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Medium | Titanium Nitride (TiN) Coated | 10 | 0000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Finishing | Titanium Nitride (TiN) Coated | 10 | 00000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Medium | Titanium Nitride (TiN) Coated | 10 | 00000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Roughing | Titanium Nitride (TiN) Coated | 10 | 00000000 | 000000 |
Carbide Inserts for Stainless Steel
Heat resistant and shaped for turning stainless steel specifically, they’ll last longer than inserts for multiple materials. Install inserts into a matching holder.
Inserts with a larger nose angle and tip radius remove more material with each pass but cut less precisely than smaller inserts. Select the insert with the largest nose angle and tip radius that will turn your workpiece to the desired shape.
Negative-rake inserts are the first choice for most turning applications. With strong cutting edges on two faces, they last longer than comparable positive-rake inserts. When all the edges on one face are worn, flip the insert over.
After choosing nose angle and rake type, consider roughing inserts for removing material quickly when surface finish isn’t a concern. Medium inserts remove a moderate amount of material for a semi-smooth surface finish. Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.
Inserts for semi-interrupted cutting conditions are the most commonly used, often to machine imperfectly round workpieces, such as shafts with a keyway.
Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment. Inserts sold in packs come factory sealed from the manufacturer for maximum traceability.



| Insert Code | Inscribed Circle Dia. (IC) | Tip Radius | Thick. | Cutting Edge Lg. | Rake Type | For Cutting Operation | Finish | Each | |
For Semi-Interrupted Cutting Conditions | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Finishing | Titanium Nitride (TiN) Coated | 00000000 | 000000 |
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Medium | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Finishing | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Medium | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Roughing | Titanium Nitride (TiN) Coated | 00000000 | 00000 |
| Insert Code | Inscribed Circle Dia. (IC) | Tip Radius | Thick. | Cutting Edge Lg. | Rake Type | For Cutting Operation | Finish | Pkg. Qty. | Pkg. | |
For Semi-Interrupted Cutting Conditions | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Finishing | Titanium Nitride (TiN) Coated | 10 | 0000000 | 0000000 |
| DNMG-431 | 1/2" | 1/64" | 3/16" | 0.59" | Negative | Medium | Titanium Nitride (TiN) Coated | 10 | 000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Finishing | Titanium Nitride (TiN) Coated | 10 | 00000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Medium | Titanium Nitride (TiN) Coated | 10 | 0000000 | 000000 |
| DNMG-432 | 1/2" | 1/32" | 3/16" | 0.58" | Negative | Roughing | Titanium Nitride (TiN) Coated | 10 | 00000000 | 000000 |
Turning Carbide Insert Holders
Secure carbide inserts inside these holders for stable turning. They’re also known as indexable insert holders. Select a holder that’s compatible with your insert by matching the insert style and inscribed circle diameter (IC). Right-hand holders move from right to left toward the lathe chuck, left-hand holders move from left to right away from the lathe chuck, and neutral holders can cut in either direction.
M-code holders secure inserts with both a top clamp and a pin lock, so they’re often used for interrupted or semi-interrupted cuts to keep inserts stable despite vibration. They’re the most commonly used holders with negative-rake inserts.
D-code holders require just a quick motion to remove inserts from their wedge clamp. However, they hold inserts less securely than M-code holders.
Holders with an offset shank are good for reaching into tight corners and when working close to the chuck.



Holders | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Insert | Shank | Replacement Clamps | Replacement Clamp Screws | Replacement Lock Pin Screws | Replacement Seats | |||||||||
| Inscribed Circle Dia. (IC) | Thick. | Wd. | Ht. | O'all Lg. | Each | Each | Each | Each | Each | |||||
For Along-the-Length Turning, Chamfering, External Profiling | ||||||||||||||
Right Hand | ||||||||||||||
| 1/2" | 3/16" | 3/4" | 3/4" | 4 1/2" | 00000000 | 0000000 | 0000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 3/16" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 0000 | 00000000 | 0000 | 00000000 | 0000 |
Left Hand | ||||||||||||||
| 1/2" | 3/16" | 3/4" | 3/4" | 4 1/2" | 00000000 | 000000 | 0000000 | 0000 | 00000000 | 0000 | 00000000 | 0000 | 00000000 | 0000 |
| 1/2" | 3/16" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 0000 | 00000000 | 0000 | 00000000 | 0000 |


Holders | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Insert | Shank | Replacement Clamps | Replacement Clamp Screws | Replacement Lock Pin Screws | Replacement Seats | |||||||||
| Inscribed Circle Dia. (IC) | Thick. | Wd. | Ht. | O'all Lg. | Each | Each | Each | Each | Each | |||||
For Along-the-Length Turning, Chamfering, External Profiling | ||||||||||||||
Neutral | ||||||||||||||
| 1/2" | 3/16" | 3/4" | 3/4" | 4 1/2" | 00000000 | 0000000 | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 3/16" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 0000 | 00000000 | 0000 | 00000000 | 0000 |



Holders | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Insert | Shank | Replacement Clamps | Replacement Seats | Replacement Seat Screws | Replacement Slotted Pins | |||||||||
| Inscribed Circle Dia. (IC) | Thick. | Wd. | Ht. | O'all Lg. | Each | Each | Each | Each | Each | |||||
For Along-the-Length Turning, Chamfering, External Profiling | ||||||||||||||
Right Hand | ||||||||||||||
| 1/2" | 1/4" | 1" | 1" | 6" | 00000000 | 0000000 | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 000000 | 00000000 | 00000 |
Left Hand | ||||||||||||||
| 1/2" | 1/4" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 000 |
For External Profiling | ||||||||||||||
Right Hand | ||||||||||||||
| 3/8" | 3/16" | 3/4" | 3/4" | 4 1/2" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 00000 | 00000000 | 000 |
| 1/2" | 3/16" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 000 |
Left Hand | ||||||||||||||
| 1/2" | 3/16" | 1" | 1" | 6" | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 00000 | 00000000 | 000 |

























