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GARR TOOL 920M Ball End Mill
GARR TOOL 920M Ball End Mill
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General-purpose, standard-length ball-end mill with 2 flutes. Solid submicron-grain carbide with a center-cutting design.
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Technical Specifications
GARR TOOL 920M Ball End Mill
Exact tool data. Clear decisions.
Compare the configurations in this series. Dimensions and geometry apply to the selected EDP.
Tool configurations
- d1
- Cutting diameter
- d2
- Shank diameter
- l2
- Length of cut
- l1
- Overall length
Manufacturer drawing for dimension reference. Refer to the selected EDP for its dimensions.
| EDP | Cutting diameter d1 (mm) | Shank diameter d2 (mm) | Length of cut l2 (mm) | Overall length l1 (mm) | Flutes | End type | Weight (lb) |
|---|---|---|---|---|---|---|---|
| 47010 | 1.00 mm | 3.0 mm | 4 mm | 38 mm | 2 | BALL | 0.0100 |
| 47020 | 1.50 mm | 3.0 mm | 6 mm | 38 mm | 2 | BALL | 0.0100 |
| 47030 | 2.00 mm | 3.0 mm | 8 mm | 38 mm | 2 | BALL | 0.0100 |
| 47040 | 2.50 mm | 3.0 mm | 12 mm | 38 mm | 2 | BALL | 0.0100 |
| 47050 | 3.00 mm | 3.0 mm | 12 mm | 38 mm | 2 | BALL | 0.0100 |
| 47060 | 3.50 mm | 4.0 mm | 12 mm | 50 mm | 2 | BALL | 0.0300 |
| 47070 | 4.00 mm | 4.0 mm | 14 mm | 50 mm | 2 | BALL | 0.0300 |
| 47080 | 4.50 mm | 5.0 mm | 14 mm | 50 mm | 2 | BALL | 0.0400 |
| 47090 | 5.00 mm | 5.0 mm | 16 mm | 65 mm | 2 | BALL | 0.0400 |
| 47100 | 6.00 mm | 6.0 mm | 19 mm | 65 mm | 2 | BALL | 0.0600 |
| 47110 | 7.00 mm | 7.0 mm | 22 mm | 65 mm | 2 | BALL | 0.0800 |
| 47120 | 8.00 mm | 8.0 mm | 22 mm | 65 mm | 2 | BALL | 0.0900 |
| 47130 | 9.00 mm | 9.0 mm | 22 mm | 65 mm | 2 | BALL | 0.1400 |
| 47140 | 10.00 mm | 10.0 mm | 25 mm | 70 mm | 2 | BALL | 0.2000 |
| 47150 | 11.00 mm | 11.0 mm | 25 mm | 75 mm | 2 | BALL | 0.2300 |
| 47160 | 12.00 mm | 12.0 mm | 25 mm | 75 mm | 2 | BALL | 0.2600 |
| 47170 | 14.00 mm | 14.0 mm | 32 mm | 88 mm | 2 | BALL | 0.4000 |
| 47180 | 16.00 mm | 16.0 mm | 38 mm | 88 mm | 2 | BALL | 0.5000 |
| 47190 | 18.00 mm | 18.0 mm | 38 mm | 100 mm | 2 | BALL | 0.7200 |
| 47200 | 20.00 mm | 20.0 mm | 38 mm | 100 mm | 2 | BALL | 0.8800 |
| 47210 | 22.00 mm | 22.0 mm | 38 mm | 100 mm | 2 | BALL | 1.0800 |
| 47220 | 25.00 mm | 25.0 mm | 38 mm | 100 mm | 2 | BALL | 1.3400 |
| 97070 | 5.00 mm | 5.0 mm | 16 mm | 50 mm | 2 | BALL | 0.0300 |
No EDP matches. Clear the search to see this series.
Technical overview
Tool class
General Purpose
Geometry
Standard Length - Ball End - 2 Flutes
Construction
Solid submicron grain carbide end mill - center cutting
Tolerances
< or = .030" flute dia. +.000-.001" (+0.000-0.025mm) · > or = 1/32" flute dia. +.000-.002" (+0.000-0.050mm) · shank dia. h6 · ball radius +.000-.001" (+0.000-0.025mm)
Advantages
Applications & compatible materials
Applications
- Milling
Speeds & chiploads
GARR’s general-purpose milling guide. Starting ranges, organized by workpiece and hardness.
Match the guide to your tool. Confirm the selected series, coating, workpiece, and hardness against GARR’s catalog before applying these ranges. The linked general-purpose guide covers multiple tool configurations.
HRC Rockwell C hardness · Vc Cutting speed · Fz Chipload per tooth
Swipe across to compare cutter diameters →
| Workpiece / material | HRC | Vc ft/min | Ø 1/16"Fz in/tooth | Ø 1/8"Fz in/tooth | Ø 3/16"Fz in/tooth | Ø 1/4"Fz in/tooth | Ø 5/16"Fz in/tooth | Ø 3/8"Fz in/tooth | Ø 1/2"Fz in/tooth | Ø 5/8"Fz in/tooth | Ø 3/4"Fz in/tooth | Ø 1"Fz in/tooth |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome | < 40 | 60 - 90 | .0004" - .0008" | .0004" - .0008" | .0004" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0018" | .0015" - .0030" | .0020" - .0030" | .0025" - .0035" | .0025" - .0035" |
| SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome | > 40 | 50 - 80 | .0003" - .0006" | .0003" - .0006" | .0003" - .0006" | .0003" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0015" | .0015" - .0025" | .0015" - .0020" | .0015" - .0020" |
| SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel | < 40 | 55 - 90 | .0004" - .0008" | .0004" - .0008" | .0004" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0018" | .0015" - .0030" | .0020" - .0030" | .0025" - .0035" | .0025" - .0035" |
| SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel | > 40 | 45 - 80 | .0003" - .0006" | .0003" - .0006" | .0003" - .0006" | .0003" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0015" | .0015" - .0025" | .0015" - .0020" | .0015" - .0020" |
| SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy | < 40 | 55 - 90 | .0004" - .0008" | .0004" - .0008" | .0004" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0018" | .0015" - .0030" | .0020" - .0030" | .0025" - .0035" | .0025" - .0035" |
| SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy | > 40 | 50 - 80 | .0003" - .0006" | .0003" - .0006" | .0003" - .0006" | .0003" - .0008" | .0005" - .0010" | .0008" - .0015" | .0010" - .0015" | .0015" - .0025" | .0015" - .0020" | .0015" - .0020" |
| STitanium AlloysCommercially Pure, 6Al-4V, Astm 1/2/3, 6Al-25N-4Zr-2Mo-Si | — | 100 - 150 | .0003" - .0008" | .0003" - .0008" | .0005" - .0012" | .0005" - .0012" | .0008" - .0015" | .0010" - .0015" | .0013" - .0020" | .0018" - .0025" | .0020" - .0030" | .0025" - .0035" |
| STitanium Alloys5553 / Beta Titanium | — | 90 - 120 | .0003" - .0008" | .0003" - .0008" | .0004" - .0010" | .0004" - .0010" | .0005" - .0012" | .0008" - .0014" | .0010" - .0016" | .0010" - .0020" | .0015" - .0025" | .0015" - .0025" |
| MStainless Steels13/8, 15/5, 17-4, pH Types | < 40 | 100 - 150 | .0002" - .0005" | .0003" - .0006" | .0003" - .0007" | .0006" - .0009" | .0008" - .0012" | .0013" - .0018" | .0010" - .0020" | .0012" - .0025" | .0012" - .0020" | .0020" - .0028" |
| MStainless Steels13/8, 15/5, 17-4, pH Types | > 40 | 80 - 100 | .0002" - .0004" | .0002" - .0004" | .0002" - .0006" | .0003" - .0007" | .0004" - .0008" | .0007" - .0012" | .0008" - .0015" | .0010" - .0016" | .0013" - .0017" | .0015" - .0020" |
| MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic | < 40 | 100 - 150 | .0003" - .0006" | .0003" - .0007" | .0005" - .0010" | .0008" - .0015" | .0009" - .0013" | .0010" - .0018" | .0015" - .0020" | .0018" - .0022" | .0018" - .0035" | .0023" - .0036" |
| MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic | > 40 | 80 - 100 | .0002" - .0004" | .0002" - .0005" | .0004" - .0007" | .0005" - .0010" | .0005" - .0010" | .0007" - .0010" | .0009" - .0015" | .0012" - .0018" | .0015" - .0025" | .0020" - .0030" |
| MStainless Steels400 Series - 403, 405, 420, 455 | < 40 | 150 - 200 | .0005" - .0008" | .0007" - .0010" | .0009" - .0015" | .0009" - .0014" | .0011" - .0015" | .0013" - .0018" | .0015" - .0025" | .0020" - .0035" | .0022" - .0040" | .0030" - .0046" |
| MStainless Steels400 Series - 403, 405, 420, 455 | > 40 | 100 - 150 | .0003" - .0007" | .0004" - .0008" | .0006" - .0010" | .0007" - .0011" | .0008" - .0012" | .0009" - .0015" | .0012" - .0020" | .0018" - .0030" | .0020" - .0035" | .0024" - .0042" |
| PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1 | < 40 | 150 - 200 | .0003" - .0008" | .0003" - .0008" | .0005" - .0010" | .0010" - .0015" | .0012" - .0020" | .0012" - .0020" | .0014" - .0024" | .0018" - .0026" | .0020" - .0028" | .0022" - .0030" |
| PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1 | > 40 | 100 - 150 | .0003" - .0005" | .0003" - .0005" | .0003" - .0008" | .0005" - .0010" | .0005" - .0010" | .0005" - .0010" | .0010" - .0015" | .0012" - .0018" | .0014" - .0020" | .0015" - .0022" |
| PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620 | < 40 | 150 - 200 | .0003" - .0008" | .0003" - .0008" | .0005" - .0010" | .0010" - .0015" | .0012" - .0020" | .0012" - .0020" | .0014" - .0024" | .0018" - .0026" | .0020" - .0028" | .0022" - .0030" |
| PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620 | > 40 | 100 - 150 | .0003" - .0005" | .0003" - .0005" | .0003" - .0008" | .0005" - .0010" | .0005" - .0010" | .0005" - .0010" | .0010" - .0015" | .0012" - .0018" | .0014" - .0020" | .0015" - .0022" |
| PCarbon Steels1000’s - 1018, 1020, 12L14 | < 40 | 150 - 200 | .0003" - .0008" | .0003" - .0008" | .0005" - .0010" | .0010" - .0015" | .0012" - .0020" | .0012" - .0020" | .0014" - .0024" | .0018" - .0026" | .0020" - .0028" | .0022" - .0030" |
| KCast MaterialDuctile Iron | — | 175 - 225 | .0005" - .0008" | .0008" - .0012" | .0010" - .0015" | .0015" - .0025" | .0015" - .0025" | .0020" - .0030" | .0025" - .0035" | .0035" - .0045" | .0035" - .0045" | .0045" - .0055" |
| KCast MaterialGray Iron | — | 175 - 225 | .0005" - .0008" | .0008" - .0012" | .0010" - .0015" | .0015" - .0025" | .0015" - .0025" | .0020" - .0030" | .0025" - .0035" | .0035" - .0045" | .0035" - .0045" | .0045" - .0055" |
| NNon-FerrousAluminum | — | 300 - 500 | .0003" - .0005" | .0006" - .0010" | .0008" - .0014" | .0012" - .0020" | .0014" - .0028" | .0020" - .0030" | .0035" - .0048" | .0050" - .0060" | .0058" - .0070" | .0068" - .0090" |
| NNon-FerrousMagnesium | — | 300 - 500 | .0003" - .0005" | .0006" - .0010" | .0008" - .0014" | .0012" - .0020" | .0014" - .0028" | .0020" - .0030" | .0035" - .0048" | .0050" - .0060" | .0058" - .0070" | .0068" - .0090" |
| NNon-FerrousCopper | — | 250 - 450 | .0003" - .0005" | .0006" - .0010" | .0008" - .0014" | .0012" - .0020" | .0014" - .0028" | .0020" - .0030" | .0035" - .0048" | .0050" - .0060" | .0058" - .0070" | .0068" - .0090" |
| NNon-FerrousBrass, Bronze | — | 200 - 400 | .0003" - .0005" | .0006" - .0010" | .0008" - .0014" | .0012" - .0020" | .0014" - .0028" | .0020" - .0030" | .0035" - .0048" | .0050" - .0060" | .0058" - .0070" | .0068" - .0090" |
| OComposite (Non-Iso)Fiberglass, Plastics, G10 | — | 200 - 400 | .0003" - .0005" | .0006" - .0010" | .0008" - .0014" | .0012" - .0020" | .0014" - .0028" | .0020" - .0030" | .0035" - .0048" | .0050" - .0060" | .0058" - .0070" | .0068" - .0090" |
| Workpiece / material | HRC | Vc m/min | Ø 1.5mmFz mm/tooth | Ø 3.0mmFz mm/tooth | Ø 5.0mmFz mm/tooth | Ø 6.0mmFz mm/tooth | Ø 8.0mmFz mm/tooth | Ø 10.0mmFz mm/tooth | Ø 12.0mmFz mm/tooth | Ø 16.0mmFz mm/tooth | Ø 20.0mmFz mm/tooth | Ø 25.0mmFz mm/tooth |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome | < 40 | 24 - 35 | .010 - .020 | .010 - .020 | .010 - .020 | .013 - .025 | .020 - .038 | .025 - .046 | .038 - .076 | .051 - .076 | .064 - .089 | .064 - .089 |
| SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome | > 40 | 20 - 31 | .008 - .015 | .008 - .015 | .008 - .015 | .008 - .020 | .013 - .025 | .020 - .038 | .025 - .038 | .038 - .064 | .038 - .051 | .038 - .051 |
| SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel | < 40 | 22 - 35 | .010 - .020 | .010 - .020 | .010 - .020 | .013 - .025 | .020 - .038 | .025 - .046 | .038 - .076 | .051 - .076 | .064 - .089 | .064 - .089 |
| SNickel Base AlloysInconel-625/718, Waspaloy, Invar, Rene, Hastelloy, Monel | > 40 | 18 - 31 | .008 - .015 | .008 - .015 | .008 - .015 | .008 - .020 | .013 - .025 | .020 - .038 | .025 - .038 | .038 - .064 | .038 - .051 | .038 - .051 |
| SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy | < 40 | 22 - 35 | .010 - .020 | .010 - .020 | .010 - .020 | .013 - .025 | .020 - .038 | .025 - .046 | .038 - .076 | .051 - .076 | .064 - .089 | .064 - .089 |
| SIron Base AlloysA286, Discaloy, Haynes 556, Carpenter 22, Greek Ascolloy | > 40 | 20 - 31 | .008 - .015 | .008 - .015 | .008 - .015 | .008 - .020 | .013 - .025 | .020 - .038 | .025 - .038 | .038 - .064 | .038 - .051 | .038 - .051 |
| STitanium AlloysCommercially Pure, 6Al-4V, Astm 1/2/3, 6Al-25N-4Zr-2Mo-Si | — | 39 - 59 | .008 - .020 | .008 - .020 | .013 - .030 | .013 - .030 | .020 - .038 | .025 - .038 | .033 - .051 | .046 - .064 | .051 - .076 | .064 - .089 |
| STitanium Alloys5553 / Beta Titanium | — | 35 - 47 | .008 - .020 | .008 - .020 | .010 -.025 | .010 - .025 | .013 - .030 | .020 - .036 | .025 - .041 | .025 - .051 | .038 - .064 | .038 - .064 |
| MStainless Steels13/8, 15/5, 17-4, pH Types | < 40 | 39 - 59 | .005 - .013 | .008 - .015 | .008 - .018 | .015 - .023 | .020 - .030 | .033 - .046 | .025 - .051 | .030 - .064 | .030 - .051 | .051 - .071 |
| MStainless Steels13/8, 15/5, 17-4, pH Types | > 40 | 31 - 39 | .005 - .010 | .005 - .010 | .005 - .015 | .008 - .018 | .010 - .020 | .018 - .030 | .020 - .038 | .025 - .041 | .033 - .043 | .038 - .051 |
| MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic | < 40 | 39 - 59 | .008 - .015 | .008 - .018 | .013 - .025 | .020 - .038 | .023 - .033 | .025 - .046 | .038 - .051 | .046 - .056 | .046 - .089 | .058 - .091 |
| MStainless Steels300 Series, 304L, Nitronic 50, Duplex, Super-Austenitic | > 40 | 31 - 39 | .005 - .010 | .005 - .013 | .010 - .018 | .013 - .025 | .013 - .025 | .018 - .025 | .023 - .038 | .030 - .046 | .038 - .064 | .051 - .076 |
| MStainless Steels400 Series - 403, 405, 420, 455 | < 40 | 59 - 79 | .013 - .020 | .018 - .025 | .023 - .038 | .023 - .036 | .028 - .038 | .033 - .046 | .038 - .064 | .051 - .089 | .056 - .102 | .076 - .117 |
| MStainless Steels400 Series - 403, 405, 420, 455 | > 40 | 39 - 59 | .008 - .018 | .010 - .020 | .015 - .025 | .018 - .028 | .020 - .030 | .023 - .038 | .030 - .051 | .046 - .076 | .051 - .089 | .061 - .107 |
| PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1 | < 40 | 59 - 79 | .008 - .020 | .008 - .020 | .013 - .025 | .025 - .038 | .030 - .051 | .030 - .051 | .036 - .061 | .046 - .066 | .051 - .071 | .056 - .076 |
| PHigh Strength Tool SteelsA2, D2, P20, H13, S7, O1 | > 40 | 39 - 59 | .008 - .013 | .008 - .013 | .008 - .020 | .013 - .025 | .013 - .025 | .013 - .025 | .025 - .038 | .030 - .046 | .036 - .051 | .038 - .056 |
| PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620 | < 40 | 59 - 79 | .008 - .020 | .008 - .020 | .013 - .025 | .025 - .038 | .030 - .051 | .030 - .051 | .036 - .061 | .046 - .066 | .051 - .071 | .056 - .076 |
| PMedium Alloy Tool Steels4140, 4340, 52100, 6150, 8620 | > 40 | 39 - 59 | .008 - .013 | .008 - .013 | .008 - .020 | .013 - .025 | .013 - .025 | .013 - .025 | .025 - .038 | .030 - .046 | .036 - .051 | .038 - .056 |
| PCarbon Steels1000’s - 1018, 1020, 12L14 | < 40 | 59 - 79 | .008 - .020 | .008 - .020 | .013 - .025 | .025 - .038 | .030 - .051 | .030 - .051 | .036 - .061 | .046 - .066 | .051 - .071 | .056 - .076 |
| KCast MaterialDuctile Iron | — | 69 - 89 | .013 - .020 | .020 - .031 | .025 - .038 | .038 - .064 | .038 - .064 | .051 - .076 | .064 - .089 | .089 - .114 | .089 - .114 | .114 - .140 |
| KCast MaterialGray Iron | — | 69 - 89 | .013 - .020 | .020 - .031 | .025 - .038 | .038 - .064 | .038 - .064 | .051 - .076 | .064 - .089 | .089 - .114 | .089 - .114 | .114 - .140 |
| NNon-FerrousAluminum | — | 118 - 197 | .008 - .013 | .015 - .025 | .020 - .036 | .030 - .051 | .036 - .071 | .051 - .076 | .089 - .122 | .127 - .152 | .147 - .178 | .173 - .229 |
| NNon-FerrousMagnesium | — | 118 - 197 | .008 - .013 | .015 - .025 | .020 - .036 | .030 - .051 | .036 - .071 | .051 - .076 | .089 - .122 | .127 - .152 | .147 - .178 | .173 - .229 |
| NNon-FerrousCopper | — | 98 - 177 | .008 - .013 | .015 - .025 | .020 - .036 | .030 - .051 | .036 - .071 | .051 - .076 | .089 - .122 | .127 - .152 | .147 - .178 | .173 - .229 |
| NNon-FerrousBrass, Bronze | — | 79 - 157 | .008 - .013 | .015 - .025 | .020 - .036 | .030 - .051 | .036 - .071 | .051 - .076 | .089 - .122 | .127 - .152 | .147 - .178 | .173 - .229 |
| OComposite (Non-Iso)Fiberglass, Plastics, G10 | — | 79 - 157 | .008 - .013 | .015 - .025 | .020 - .036 | .030 - .051 | .036 - .071 | .051 - .076 | .089 - .122 | .127 - .152 | .147 - .178 | .173 - .229 |
Manufacturer starting parameters
GARR states these are starting parameters only. Optimum conditions may allow higher results. When plunging into solid material, reduce feed by approximately 50%. The guide uses 20% of tool diameter for basic engagement parameters.
Use the actual workpiece, tool diameter, machine rigidity, and setup to establish safe cutting conditions. Graphite requires its separate manufacturer chart.
Technical documents
Cutting parameters, setup guidance, and the series catalog.
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