McMaster-Carr logo
    Filter by
    Material
    For Use On
    System of Measurement
    Inscribed Circle Diameter (IC)
    Attribute Image
    Rake Angle Type
    For Cutting Operation
    Number of Cutting Edges
    Relief Angle
    Attribute Image
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Snippet
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    17 Products

    Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel

    Resisting wear and fractures when cutting hardened steel, these cubic boron nitride inserts last longer than carbide inserts. Use them for high-speed finishing and interrupted cutting applications. All have multiple cutting edges, so when an edge dulls, rotate the insert in your holder to use a sharp edge. Those with larger nose angles and tip radii have stronger cutting edges, but create more vibration and a rougher finish.
    For traceability, inserts come factory sealed from the manufacturer.
    CCMW (Diamond with 80° Nose Angle)—For ACLC and SCLC Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, CCMW Insert.
    Image of Attribute. Front orientation. Contains Annotated. CCMW Insert.
    Positive Rake Angle—Positive-rake inserts have an edge that is less than 90° to sit flat in the holder for improved cutting clearance and a better finish than negative-rake inserts. They have cutting edges on one side of the inserts.
    Each
    Insert Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    CCMW-21.50.5
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/4"3/32"0.11"0.08"0.008"PositiveMediumPVD (Physical Vapor Deposition)5536N111000000000000
    CCMW-21.52
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/4"3/32"0.11"0.07"1/32"PositiveMediumPVD (Physical Vapor Deposition)5536N1130000000000
    CCMW-32.51
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"5/32"0.173"0.07"1/64"PositiveMediumPVD (Physical Vapor Deposition)5536N1140000000000
    CCMW-32.52
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"5/32"0.173"0.07"1/32"PositiveMediumPVD (Physical Vapor Deposition)5536N1150000000000
     
    CNGA (Diamond with 80° Nose Angle)—For DCLN, MCLN, and PCLN Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, CNGA Insert.
    Image of Attribute. Front orientation. Contains Annotated. CNGA Insert.
    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 of the inserts for twice the life of comparable positive-rake inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    CNGA-431
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.1"1/64"NegativeMediumPVD (Physical Vapor Deposition)5536N117000000000000
    CNGA-432
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.1"1/32"NegativeMediumPVD (Physical Vapor Deposition)5536N1180000000000
    CNGA-434
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.13"1/16"NegativeMediumPVD (Physical Vapor Deposition)5536N1210000000000
     
    DCMW (Diamond with 55° Nose Angle)—For ADJC, SDJC, SDLC, SDNC, SDQC, SDUC, SDXC, and SDZC Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, DCMW Insert.
    Image of Attribute. Front orientation. Contains Annotated. DCMW Insert.
    Positive Rake Angle—Positive-rake inserts have an edge that is less than 90° to sit flat in the holder for improved cutting clearance and a better finish than negative-rake inserts. They have cutting edges on one side of the inserts.
    Each
    Insert Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    DCMW-32.50.5
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"5/32"0.173"0.07"0.008"PositiveMediumPVD (Physical Vapor Deposition)5536N122000000000000
     
    DNGA (Diamond with 55° Nose Angle)—For DDHN, DDUN, MDJN, PDHN, PDJN, PDQN, PDUN, and PDZN Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, DNGA Insert.
    Image of Attribute. Front orientation. Contains Annotated. DNGA Insert.
    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 of the inserts for twice the life of comparable positive-rake inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    DNGA-431
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.1"1/64"NegativeMediumPVD (Physical Vapor Deposition)5536N127000000000000
    DNGA-432
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.09"1/32"NegativeMediumPVD (Physical Vapor Deposition)5536N1280000000000
     
    TNGA (Triangle with 60° Nose Angle)—For DTFN, DTGN, MTGN, PTFN, PTGN,PTUN, WTEN, WTJN, and WTKN Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, TNGA Insert.
    Image of Attribute. Front orientation. Contains Annotated. TNGA Insert.
    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 of the inserts for twice the life of comparable positive-rake inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    TNGA-331
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.15"0.11"1/64"NegativeMediumPVD (Physical Vapor Deposition)5536N1310000000000000
    TNGA-332
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.15"0.09"1/32"NegativeMediumPVD (Physical Vapor Deposition)5536N13200000000000
     
    VBGW (Diamond with 35° Nose Angle)—For SVJB, SVPB, SVUB, SVVB, SVZB, and SVZC Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, VBGW Insert.
    Image of Attribute. Front orientation. Contains Annotated. VBGW Insert.
    Positive Rake Angle—Positive-rake inserts have an edge that is less than 90° to sit flat in the holder for improved cutting clearance and a better finish than negative-rake inserts. They have cutting edges on one side of the inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    VBGW-331
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.173"0.08"1/64"PositiveMediumPVD (Physical Vapor Deposition)5536N133000000000000
    VBGW-332
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.173"0.07"1/32"PositiveMediumPVD (Physical Vapor Deposition)5536N1340000000000
     
    VNGA (Diamond with 35° Nose Angle)—For DVJN, DVLN, DVPN, DVVN, MVJN, MVLN, MVVN, PVLN, PVPN, and PVVN Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, VNGA Insert.
    Image of Attribute. Front orientation. Contains Annotated. VNGA Insert.
    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 of the inserts for twice the life of comparable positive-rake inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    VNGA-331
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.15"0.08"1/64"NegativeMediumPVD (Physical Vapor Deposition)5536N135000000000000
    VNGA-332
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated3/8"3/16"0.15"0.07"1/32"NegativeMediumPVD (Physical Vapor Deposition)5536N1360000000000
     
    WNGA (Trigon with 80° Nose Angle)—For DWLN, MWLN, PWLN, and WWLN Holders
    Image of Product. Front orientation. Lathe Tool Inserts. Cubic Boron Nitride Lathe Tool Inserts for Hardened Steel, WNGA Insert.
    Image of Attribute. Front orientation. Contains Annotated. WNGA Insert.
    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 of the inserts for twice the life of comparable positive-rake inserts.
    Each
    Insert
    Code
    Finish
    IC
    Dia.
    Thk.
    Hole
    Dia.
    Cutting
    Edge Lg.
    Tip
    Radius
    Rake Angle
    Type
    For Cutting
    Operation
    Coating Process
    1-9
    10-Up
    For Use On Hardened Steel
    WNGA-432
    Titanium Aluminum Oxygen Nitride (TiAlON) Coated1/2"3/16"0.203"0.1"1/32"NegativeMediumPVD (Physical Vapor Deposition)5536N137000000000000
     
    back to top