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GARR TOOL 870R Corner Radius End Mill — representative series image; exact dimensions vary by EDP

GARR TOOL 870R Corner Radius End Mill

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Technical Specifications

GARR TOOL 870R Corner Radius End Mill

Exact tool data. Clear decisions.

Compare the configurations in this series. Dimensions and geometry apply to the selected EDP.

Tool configurations

GARR TOOL 870R Corner Radius End Mill — manufacturer dimension reference drawing
Dimension reference
d1
Cutting diameter
d2
Shank diameter
l2
Length of cut
l1
Overall length
r
Corner radius

Manufacturer drawing for dimension reference. Refer to the selected EDP for its dimensions.

Scroll across for all specifications →
Dimensions: millimeters. Values preserved from GARR.
EDP Cutting diameter d1 (mm)Shank diameter d2 (mm)Length of cut l2 (mm)Overall length l1 (mm)Corner radius r (mm)FlutesEnd typeWeight (lb)
30711 3.00 mm3.0 mm6 mm38 mm0.20004RAD0.0100
30713 3.00 mm3.0 mm6 mm38 mm0.50004RAD0.0100
30723 4.00 mm4.0 mm8 mm50 mm0.30004RAD0.0200
30725 4.00 mm4.0 mm8 mm50 mm0.50004RAD0.0000
30735 5.00 mm5.0 mm10 mm50 mm0.30004RAD0.0000
30737 5.00 mm5.0 mm10 mm50 mm0.50004RAD0.0000
30739 6.00 mm6.0 mm12 mm50 mm0.50004RAD0.0500
30741 6.00 mm6.0 mm12 mm50 mm0.80004RAD0.0500
30743 6.00 mm6.0 mm12 mm50 mm1.00004RAD0.0400
30745 6.00 mm6.0 mm12 mm50 mm1.50004RAD0.0400
30747 6.00 mm6.0 mm12 mm50 mm2.00004RAD0.0000
30771 8.00 mm8.0 mm12 mm50 mm0.50004RAD0.0000
30773 8.00 mm8.0 mm12 mm50 mm0.80004RAD0.0900
30775 8.00 mm8.0 mm12 mm50 mm1.00004RAD0.0000
30777 8.00 mm8.0 mm12 mm50 mm1.50004RAD0.0900
30779 8.00 mm8.0 mm12 mm50 mm2.00004RAD0.0900
30781 8.00 mm8.0 mm12 mm50 mm2.50004RAD0.0900
30783 8.00 mm8.0 mm12 mm50 mm3.00004RAD0.0900
30797 10.00 mm10.0 mm16 mm50 mm0.50004RAD0.1300
30799 10.00 mm10.0 mm16 mm50 mm0.80004RAD0.0000
30801 10.00 mm10.0 mm16 mm50 mm1.00004RAD0.1300
30803 10.00 mm10.0 mm16 mm50 mm1.50004RAD0.0000
30805 10.00 mm10.0 mm16 mm50 mm2.00004RAD0.0000
30807 10.00 mm10.0 mm16 mm50 mm2.50004RAD0.0000
30809 10.00 mm10.0 mm16 mm50 mm3.00004RAD0.0000
30811 10.00 mm10.0 mm16 mm50 mm3.20004RAD0.0000
30829 12.00 mm12.0 mm19 mm65 mm0.50004RAD0.0000
30831 12.00 mm12.0 mm19 mm65 mm0.80004RAD0.0000
30833 12.00 mm12.0 mm19 mm65 mm1.00004RAD0.2300
30835 12.00 mm12.0 mm19 mm65 mm1.50004RAD0.2400
30837 12.00 mm12.0 mm19 mm65 mm2.00004RAD0.0000
30839 12.00 mm12.0 mm19 mm65 mm2.50004RAD0.0000
30841 12.00 mm12.0 mm19 mm65 mm3.00004RAD0.2300
30843 12.00 mm12.0 mm19 mm65 mm3.20004RAD0.0000
30873 16.00 mm16.0 mm19 mm75 mm0.50004RAD0.4600
30875 16.00 mm16.0 mm19 mm75 mm1.00004RAD0.4600
30877 16.00 mm16.0 mm19 mm75 mm2.00004RAD0.4600
30879 16.00 mm16.0 mm19 mm75 mm2.50004RAD0.4600
30881 16.00 mm16.0 mm19 mm75 mm3.00004RAD0.4600
30883 16.00 mm16.0 mm19 mm75 mm4.00004RAD0.4600
30885 16.00 mm16.0 mm19 mm75 mm5.00004RAD0.4600

Technical overview

Tool class
General Purpose
Geometry
Stub Length - Corner Radius - 4 Flutes
Construction
Solid submicron grain carbide end mill - center cutting
Tolerances
flute dia. +0.000-0.050mm · shank dia. h6 · radius +0.025-0.025mm
Advantages

Corner-radius geometry
For stronger corners and part radius

Versatility
Extremely versatile

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 →

Cutting speed: ft/min (SFM) · Chipload: in/tooth
Workpiece / materialHRCVc ft/minØ 1/16"Fz in/toothØ 1/8"Fz in/toothØ 3/16"Fz in/toothØ 1/4"Fz in/toothØ 5/16"Fz in/toothØ 3/8"Fz in/toothØ 1/2"Fz in/toothØ 5/8"Fz in/toothØ 3/4"Fz in/toothØ 1"Fz in/tooth
SCobalt Base AlloysHaynes 25/188, Stellite 21, Cobalt Chrome< 4060 - 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> 4050 - 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< 4055 - 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> 4045 - 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< 4055 - 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> 4050 - 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< 40100 - 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> 4080 - 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< 40100 - 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> 4080 - 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< 40150 - 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> 40100 - 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< 40150 - 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> 40100 - 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< 40150 - 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> 40100 - 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< 40150 - 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"
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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