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Technical Specifications

Tool configurations

Select a configuration to review it above.

Article IDConfigurationSizeCutter Diameter D1Length of Cut L2FlutesShank Diameter D2Overall Length L1Included Angle (°)CoatingProfileCoating / flute offeringManufacturer material recommendationsDimensional tolerancesThread Size
16901 16901 · 0.0590" (1.5 mm) · 3FL · UN M2-0.400.0590" (1.5 mm)0.1260"30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M2-0.40
16901-C3 16901-C3 · 0.0590" (1.5 mm) · 3FL · C3 M2-0.400.0590" (1.5 mm)0.1260"30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M2-0.40
16902 16902 · 0.0590" (1.5 mm) · 3FL · UN M2.5-0.450.0590" (1.5 mm)0.1420"30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M2.5-0.45
16902-C3 16902-C3 · 0.0590" (1.5 mm) · 3FL · C3 M2.5-0.450.0590" (1.5 mm)0.1420"30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M2.5-0.45
16903 16903 · 0.0850" · 3FL · UN M3-0.500.0850"0.1780"30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M3-0.50
16903-C3 16903-C3 · 0.0850" · 3FL · C3 M3-0.500.0850"0.1780"30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M3-0.50
16907 16907 · 0.1150" · 3FL · UN M4-0.700.1150"0.2760"30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M4-0.70
16907-C3 16907-C3 · 0.1150" · 3FL · C3 M4-0.700.1150"0.2760"30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M4-0.70
16909 16909 · 0.1200" · 3FL · UN M4.5-0.750.1200"0.2500" (1/4)30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M4.5-0.75
16909-C3 16909-C3 · 0.1200" · 3FL · C3 M4.5-0.750.1200"0.2500" (1/4)30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M4.5-0.75
16911 16911 · 0.1200" · 3FL · UN M5-0.800.1200"0.3120" (5/16)30.1250" (1/8)2.0000" (2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M5-0.80
16911-C3 16911-C3 · 0.1200" · 3FL · C3 M5-0.800.1200"0.3120" (5/16)30.1250" (1/8)2.0000" (2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M5-0.80
16919 16919 · 0.1700" · 3FL · UN M6-0.750.1700"0.3660"30.1875" (3/16)2.5000" (2-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M6-0.75
16919-C3 16919-C3 · 0.1700" · 3FL · C3 M6-0.750.1700"0.3660"30.1875" (3/16)2.5000" (2-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M6-0.75
16917 16917 · 0.1700" · 3FL · UN M6-1.000.1700"0.5000" (1/2)30.1875" (3/16)2.5000" (2-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M6-1.00
16917-C3 16917-C3 · 0.1700" · 3FL · C3 M6-1.000.1700"0.5000" (1/2)30.1875" (3/16)2.5000" (2-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M6-1.00
16924 16924 · 0.2350" · 3FL · UN M8-1.000.2350"0.6250" (5/8)30.2500" (1/4)2.5000" (2-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M8-1.00
16924-C3 16924-C3 · 0.2350" · 3FL · C3 M8-1.000.2350"0.6250" (5/8)30.2500" (1/4)2.5000" (2-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M8-1.00
16923 16923 · 0.2350" · 3FL · UN M8-1.250.2350"0.6250" (5/8)30.2500" (1/4)2.5000" (2-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M8-1.25
16923-C3 16923-C3 · 0.2350" · 3FL · C3 M8-1.250.2350"0.6250" (5/8)30.2500" (1/4)2.5000" (2-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M8-1.25
16930 16930 · 0.3000" · 4FL · UN M10-1.000.3000"0.7500" (3/4)40.3125" (5/16)3.0000" (3)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M10-1.00
16930-C3 16930-C3 · 0.3000" · 4FL · C3 M10-1.000.3000"0.7500" (3/4)40.3125" (5/16)3.0000" (3)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M10-1.00
16929 16929 · 0.3000" · 4FL · UN M10-1.500.3000"0.7500" (3/4)40.3125" (5/16)3.0000" (3)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M10-1.50
16929-C3 16929-C3 · 0.3000" · 4FL · C3 M10-1.500.3000"0.7500" (3/4)40.3125" (5/16)3.0000" (3)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M10-1.50
16935 16935 · 0.3600" · 4FL · UN M12-1.750.3600"0.8750" (7/8)40.3750" (3/8)3.5000" (3-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M12-1.75
16935-C3 16935-C3 · 0.3600" · 4FL · C3 M12-1.750.3600"0.8750" (7/8)40.3750" (3/8)3.5000" (3-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M12-1.75
16941 16941 · 0.3700" · 4FL · UN M14-1.500.3700"0.8750" (7/8)40.3750" (3/8)3.5000" (3-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M14-1.50
16941-C3 16941-C3 · 0.3700" · 4FL · C3 M14-1.500.3700"0.8750" (7/8)40.3750" (3/8)3.5000" (3-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M14-1.50
16947 16947 · 0.4700" · 4FL · UN M16-2.000.4700"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M16-2.00
16947-C3 16947-C3 · 0.4700" · 4FL · C3 M16-2.000.4700"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M16-2.00
16953 16953 · 0.4900" · 4FL · UN M18-1.500.4900"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M18-1.50
16953-C3 16953-C3 · 0.4900" · 4FL · C3 M18-1.500.4900"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M18-1.50
16959 16959 · 0.4950" · 4FL · UN M20-2.500.4950"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60UNMulti-FormUNCOATEDAluminum, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, Wood, CompositesCUTTER DIA. · D1+.0005"-.0005"M20-2.50
16959-C3 16959-C3 · 0.4950" · 4FL · C3 M20-2.500.4950"1.2500" (1-1/4)40.5000" (1/2)3.5000" (3-1/2)60C3Multi-FormAlTiN COATEDNon-Ferrous Metal, Cast Iron, Steel, Stainless Steel, Exotic Metal, Titanium, CompositesCUTTER DIA. · D1+.0005"-.0005"M20-2.50

Technical documents

Compare With Similar Items

Product
Description

Solid-carbide multi-form thread milling cutters for Metric threads.

Solid-carbide multi-form thread milling cutters for NPT threads.

Solid-carbide multi-form thread milling cutters for UN threads.

Solid-carbide single-form thread milling cutters for UN threads.

Price
Pricing by quote
Pricing by quote
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Pricing by quote

Technical guidance & FAQs

Applications and materials

Harvey Tool multi-form metric thread mills machine internal and external metric threads, including right- and left-hand threads. Multiple cutting forms are matched to a specific pitch, and a suitable cutter can machine larger thread diameters of the same pitch.

Choosing a configuration

Match the metric thread diameter and pitch, then check cutter diameter, cutting length and bore clearance. Review shank dimensions carefully: the manufacturer identifies fractional shanks in this metric-thread family.

Compatibility and use

Metric thread designation does not mean every physical tool dimension is metric. Use the listed shank and cutter values for holder selection. Select uncoated or AlTiN running data for the exact tool and workpiece.

Technical documents

Use the linked speeds and feeds sheet with the selected tool number, coating and workpiece material.

Harvey Tool speeds & feeds — 70000 (PDF)

Are the shanks metric?

Harvey identifies fractional shanks for this metric-thread family. Match the actual listed shank dimension to the holder.

Can one cutter produce several metric diameters?

Larger diameters of the same pitch may be possible within the tool’s access and cutting-length limits. Confirm the exact geometry.

Can I use it for another pitch?

Choose a cutter with the required pitch. The multi-form tooth spacing is not changed by programming alone.

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