SNMG-Insert Lathe Tool Inserts

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82 Products

Lathe Tool 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.

SNMG (Square with 90° Nose Angle)—For DSDN and MSDN Holders

Image of Product. Front orientation. Lathe Tool Inserts. Lathe Tool Inserts for Multiple Materials, SNMG Insert.

Image of Attribute. Front orientation. Contains Annotated. SNMG Insert.

Clear Plastic Case

For Semi-Interrupted Cutting Conditions—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.

For Interrupted Cutting Conditions—Inserts for interrupted cutting conditions are best for workpieces that will come in and out of contact with the insert, such as hex bars.

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

Uncoated—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.

Titanium Aluminum Nitride (TiAlN) Coated—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—Titanium nitride (TiN) coated inserts create less friction than uncoated inserts, so they last longer when run at similar speeds.

Negative Rake Angle—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.

For Medium Cutting Operation—Medium inserts remove a moderate amount of material for a semi-smooth surface finish.

For Finishing Cutting Operation—Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.

Chip Breakers—Inserts with chip breakers prevent long chips from forming, so they won’t block the flow of coolant or damage your tool.

												Individual				Package
	Insert Code	Finish	IC Dia.	Thk.	Hole Dia.	Cutting Edge Lg.	Tip Radius	Rake Angle Type	For Cutting Operation	Coating Process	Features	Includes	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Use On Aluminum, Brass, Bronze, Cast Iron, Copper, Nickel, Plastic, Stainless Steel, Steel, and Titanium







				For Semi-Interrupted Cutting Conditions

				SNMG-322	Uncoated	3/8"	1/8"	0.15"	0.34"	1/32"	Negative	Medium	—	Chip Breakers	Clear Plastic Case	1	3244A146	000000	10	3244A16	000000


				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A764	00000	10	3244A8	000000
				SNMG-643	Uncoated	3/4"	1/4"	0.312"	0.7"	3/64"	Negative	Medium	—	Chip Breakers	Clear Plastic Case	1	3244A151	00000	10	3244A17	000000




						For Interrupted Cutting Conditions

						SNMG-431	Titanium Aluminum Nitride (TiAlN) Coated	1/2"	3/16"	0.203"	0.48"	1/64"	Negative	Finishing	PVD (Physical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A754	00000	10	3244A76	000000


						For Use On Brass, Bronze, Copper, Nickel, Plastic, Stainless Steel, Steel, and Titanium







										For Semi-Interrupted Cutting Conditions

										SNMG-432	Titanium Aluminum Nitride (TiAlN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Finishing	PVD (Physical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3867N151	00000	10	3867N438	000000

Economy Lathe Tool 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.

SNMG (Square with 90° Nose Angle)—For DSDN and MSDN Holders

Clear Plastic Case

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

Titanium Nitride (TiN) Coated—Coated inserts last longer and can be run at faster speeds than uncoated inserts.

Negative Rake Angle—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.

												Individual				Package
	Insert Code	Finish	IC Dia.	Thk.	Hole Dia.	Cutting Edge Lg.	Tip Radius	Rake Angle Type	For Cutting Operation	Coating Process	Features	Includes	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Use On Aluminum, Brass, and Bronze



		SNMG-431	Uncoated	1/2"	3/16"	0.203"	0.5"	1/64"	Negative	Medium	—	Chip Breakers	Clear Plastic Case	1	1691N53	00000	10	1691N472	000000


		SNMG-432	Uncoated	1/2"	3/16"	0.203"	0.5"	1/32"	Negative	Medium	—	Chip Breakers	Clear Plastic Case	1	1691N55	0000	10	1691N498	00000
		SNMG-433	Uncoated	1/2"	3/16"	0.203"	0.5"	3/64"	Negative	Medium	—	Chip Breakers	Clear Plastic Case	1	1691N57	0000	10	1691N564	00000


		For Use On Steel and Stainless Steel



				SNMG-431	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.5"	1/64"	Negative	Medium	PVD (Physical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	1691N54	0000	10	1691N476	00000


				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.5"	1/32"	Negative	Medium	PVD (Physical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	1691N56	0000	10	1691N555	00000
				SNMG-433	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.5"	3/64"	Negative	Medium	PVD (Physical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	1691N58	0000	10	1691N592	00000

Lathe Tool 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.

SNMG (Square with 90° Nose Angle)—For DSDN and MSDN Holders

Clear Plastic Case

For Semi-Interrupted Cutting Conditions—Inserts for semi-interrupted cutting conditions are the most commonly used, often to machine imperfectly round workpieces, such as shafts with a keyway.

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

For Roughing Cutting Operation—Roughing inserts are used for removing material quickly when surface finish isn’t a concern.

For Medium Cutting Operation—Medium inserts remove a moderate amount of material for a semi-smooth surface finish.

For Finishing Cutting Operation—Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.

												Individual				Package
	Insert Code	Finish	IC Dia.	Thk.	Hole Dia.	Cutting Edge Lg.	Tip Radius	Rake Angle Type	For Cutting Operation	Coating Process	Features	Includes	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Use On Steel







				For Semi-Interrupted Cutting Conditions

				SNMG-322	Titanium Nitride (TiN) Coated	3/8"	1/8"	0.15"	0.34"	1/32"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A273	000000	10	3244A396	0000000


				SNMG-431	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.48"	1/64"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A309	00000	10	3244A42	000000
				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Roughing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	6110N161	00000	10	6110N571	000000
				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A36	00000	10	3244A43	000000
				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Finishing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	6110N159	00000	10	6110N554	000000
				SNMG-433	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.45"	3/64"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A389	00000	10	3244A44	000000
				SNMG-543	Titanium Nitride (TiN) Coated	5/8"	1/4"	1/4"	0.58"	3/64"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A406	00000	10	3244A45	000000
				SNMG-544	Titanium Nitride (TiN) Coated	5/8"	1/4"	1/4"	0.56"	1/16"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A502	00000	10	3244A46	000000
				SNMG-643	Titanium Nitride (TiN) Coated	3/4"	1/4"	0.312"	0.7"	3/64"	Negative	Roughing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A51	00000	10	3244A47	000000

Lathe Tool 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.

SNMG (Square with 90° Nose Angle)—For DSDN and MSDN Holders


	Individual Carbide Insert Case

For Semi-Interrupted Cutting Conditions—Inserts for semi-interrupted cutting conditions are the most commonly used, often to machine imperfectly round workpieces, such as shafts with a keyway.

For Interrupted Cutting Conditions—Inserts for interrupted cutting conditions are best for workpieces that will come in and out of contact with the insert, such as hexagonal bars.

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

For Roughing Cutting Operation—Roughing inserts are used for removing material quickly when surface finish isn’t a concern.

For Medium Cutting Operation—Medium inserts remove a moderate amount of material for a semi-smooth surface finish.

For Finishing Cutting Operation—Use finishing inserts at the end of your turning process to remove minimal material for a smooth surface finish.

												Individual				Package
	Insert Code	Finish	IC Dia.	Thk.	Hole Dia.	Cutting Edge Lg.	Tip Radius	Rake Angle Type	For Cutting Operation	Coating Process	Features	Includes	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Use On Stainless Steel







				For Semi-Interrupted Cutting Conditions

				SNMG-431	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.48"	1/64"	Negative	Finishing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A756	000000	10	3244A78	0000000


				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Roughing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	4016N142	00000	10	4016N434	000000
				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A761	00000	10	3244A79	000000
				SNMG-432	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.47"	1/32"	Negative	Finishing	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	4016N511	00000	10	4016N908	000000
				SNMG-433	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.45"	3/64"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A771	00000	10	3244A84	000000




						For Interrupted Cutting Conditions

						SNMG-433	Titanium Nitride (TiN) Coated	1/2"	3/16"	0.203"	0.45"	3/64"	Negative	Medium	CVD (Chemical Vapor Deposition)	Chip Breakers	Clear Plastic Case	1	3244A767	00000	10	3244A83	000000

Lathe Tool Inserts for Heat-Resistant Super Alloys

Heat resistant and wear resistant, these inserts cut super alloys—such as Inconel and Waspaloy—and titanium better than premium general use inserts. Install inserts into a matching holder.

SNMG (Square with 90° Nose Angle)—For DSDN and MSDN Holders


	Individual Carbide Insert Case

For Semi-Interrupted Cutting Conditions—Inserts for semi-interrupted cutting conditions are the most commonly used, often to machine imperfectly round workpieces, such as shafts with a keyway.

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

For Medium Cutting Operation—Medium inserts remove a moderate amount of material for a semi-smooth surface finish.

											Individual				Package
	Insert Code	Finish	IC Dia.	Thk.	Hole Dia.	Cutting Edge Lg.	Tip Radius	Rake Angle Type	For Cutting Operation	Features	Includes	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Use On Nickel, Titanium, and Heat-Resistant Super Alloy







				For Semi-Interrupted Cutting Conditions

				SNMG-433	Uncoated	1/2"	3/16"	0.203"	0.34"	3/64"	Negative	Medium	Chip Breakers	Clear Plastic Case	1	3244A765	000000	10	3244A82	0000000

Turning Lathe Tool 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.

MSDN Holders with Straight Shank

	Holders								Replacement Clamps		Replacement Clamp Screws		Replacement Seats		Replacement Lock Pin Screws
	For Insert			Shank
	Designation	IC Dia.	Thk.	Wd.	Ht.	Overall Lg.		Each		Each		Each		Each		Each
Along-the-Length-Turning, Chamfering, Facing Cut







				Neutral Cutting Direction

				SNGA, SNGG, SNMG	3/8"	1/8"	1/2"	1/2"	4"	8924N122	000000	3288A931	000000	3288A943	00000	3288A168	000000	3288A174	00000


				SNGA, SNGG, SNGX, SNMA, SNMG, SNMM, SNMP, SNMS, SNMX	1/2"	3/16"	3/4"	3/4"	4 1/2"	3288A443	00000	3288A982	00000	3288A972	0000	3288A992	00000	3288A924	00000
				SNGA, SNGG, SNGX, SNMA, SNMG, SNMM, SNMP, SNMS, SNMX	1/2"	3/16"	1"	1"	6"	3288A445	00000	3288A982	00000	3288A972	0000	3288A992	00000	3288A924	00000
				SNGA, SNMA, SNMG, SNMM, SNMP, SNMS	3/4"	1/4"	1"	1"	6"	8924N124	000000	3288A981	00000	3288A947	0000	3288A171	00000	3288A173	00000
				SNMA, SNMG, SNML, SNMM, SNMP	5/8"	1/4"	1"	1"	6"	8924N123	000000	3288A981	00000	3288A947	0000	3288A169	00000	3288A997	00000

DSDN Holders with Straight Shank

	Holders								Replacement Clamps		Replacement Seats		Replacement Seat Screws		Replacement Slotted Pins
	For Insert			Shank
	Designation	IC Dia.	Thk.	Wd.	Ht.	Overall Lg.		Each		Each		Each		Each		Each
Along-the-Length-Turning Cut







				Neutral Cutting Direction

				SNGA, SNGG, SNMA, SNMG, SNMM, SNMP, SNMS	1/2"	3/16"	3/4"	3/4"	4 1/2"	3288A288	000000	3288A504	000000	3288A992	000000	3288A407	000000	3288A547	00000


				SNGA, SNGG, SNMA, SNMG, SNMM, SNMP, SNMS	1/2"	3/16"	1"	1"	6"	3288A305	000000	3288A504	00000	3288A992	00000	3288A407	00000	3288A547	0000

Cermet Lathe Tool Inserts for Steel

Combine the strength and wear resistance of high-performance metals with the heat resistance of ceramic—these cermet inserts cut steel at higher speeds and last longer than standard carbide inserts. Their PVD coating keeps them sharper longer than CVD-coated inserts. This means you can also use them as precision inserts or to cut non-ferrous metals. Install them in a matching holder.

SNMG (Square with 90° Nose Angle)

Individual—Inserts sold individually come packed in a clear plastic case to protect cutting edges during shipment.

Package—Inserts sold in packages come factory sealed from the manufacturer for maximum traceability.

For Roughing Cutting Operation—Roughing inserts are used for removing material quickly when surface finish isn’t a concern.

										Individual			Package
	Insert Code	For Insert Holder Code	IC Dia.	Tip Radius	Thk.	Cutting Edge Lg.	Rake Angle Type	For Cutting Operation	Finish	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
For Semi-Interrupted Cutting Conditions



		SNMG-321	PSBN, PSDN, PSKN, PSSN	3/8"	1/64"	1/8"	0.37"	Negative	Roughing	Titanium Nitride (TiN) Coated	1	9566N17	000000	10	9566N64	0000000


		SNMG-322	PSBN, PSDN, PSKN, PSSN	3/8"	1/32"	1/8"	0.36"	Negative	Roughing	Titanium Nitride (TiN) Coated	1	9566N18	00000	10	9566N65	000000