4G MILL 2 Flute 30°Helix Rib End Mill (SEM845)

Extended Neck Rib-Processing Square End Mill

4G MILL 2 Flute 30°Helix Rib End Mill (SEM845)
$117.81 INC GST $107.10 EX GST
SKU
SEM84500101E

Key features

  • Two-flute 30° helix cutting geometry
  • Square end profile for rib-processing features
  • Extended neck for added feature clearance
Mill Diameter (mm)
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Access confined features

Extended neck geometry improves clearance when machining detailed and recessed rib forms.

Defined square profile

Square end geometry supports rib features requiring flat bases and defined corners.

Precise size selection

A 0.1 mm to 12 mm diameter range suits fine through to larger rib features.

SKUMill Diameter (mm)Overall length (mm)Shank dia. (mm)Length of cut (mm)Length below shank (mm)Neck dia. (mm)Stock Price Qty Add
SEM84500101E0.140.04.00.150.50.085 1-2 Weeks $107.10
SEM84500201E0.240.04.00.30.50.17 1-2 Weeks $76.40
SEM84500301E0.340.04.00.51.00.27 1-2 Weeks $82.50
SEM84500401E0.440.04.00.61.00.37 1-2 Weeks $60.40
SEM84500501E0.545.04.00.71.00.45 1-2 Weeks $55.80
SEM84500602E0.645.04.00.92.00.55 1-2 Weeks $55.80
SEM84500702E0.745.04.01.22.00.65 1-2 Weeks $55.80
SEM84500802E0.845.04.01.22.00.75 1-2 Weeks $55.80
SEM84500908E0.945.04.01.38.00.85 1-2 Weeks $64.50
SEM84501002E150.04.01.52.00.95 1-2 Weeks $49.10
SEM84501204E1.250.04.01.84.01.15 1-2 Weeks $49.10
SEM84501406E1.450.04.02.16.01.35 1-2 Weeks $49.10
SEM84501504E1.550.04.02.34.01.45 1-2 Weeks $49.10
SEM84501608E1.650.04.02.38.01.55 1-2 Weeks $49.10
SEM84501808E1.850.04.02.78.01.75 1-2 Weeks $49.10
SEM84502006E250.04.04.06.01.95 1-2 Weeks $67.00
SEM84502508E2.550.04.04.08.02.4 1-2 Weeks $49.10
SEM84503006E350.06.04.56.02.85 Low stock $75.60
SEM84504008E450.06.06.08.03.85 1-2 Weeks $55.80
SEM84505016E560.06.08.016.04.85 1-2 Weeks $57.40
SEM84506015E660.06.09.015.05.85 1-2 Weeks $57.40
SEM84508025E870.08.012.025.07.7 1-2 Weeks $93.50
SEM84510030E1075.010.015.030.09.7 1-2 Weeks $121.40
SEM84512035E1280.012.020.035.011.7 1-2 Weeks $163.40

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  • Overview
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Product Description

YG-1 4G MILL SEM845 is a two-flute, 30° helix square end mill with extended neck geometry. It is intended for rib-processing operations requiring access around narrow detailed workpiece features. Y-Coating is specified for the SEM845 configuration within the 4G MILL range. The square cutting profile is suited to milling flat-base rib features with defined corners. The extended neck gives clearance for tool access in recessed or confined feature areas. Plain-shank variants provide a straightforward interface for compatible milling toolholding systems. Available cutting diameters run from 0.1 mm to 12 mm across the family. This compact diameter range supports precise selection for small to medium-scale rib features. Select a diameter appropriate to the rib size and access requirements.

  • Two-flute 30° helix cutting geometry
  • Square end profile for rib-processing features
  • Extended neck for added feature clearance
  • Y-Coating specified for the SEM845 series
  • Plain shank configuration
  • Available in 0.1 mm to 12 mm diameters
Product Data

No specifications available.

EDP No. Mill Diameter (D1) ShankDia (D2) Length of Cut (L1) Overall Length (L2) Mill Dia. Tolerance Shank Dia. Tolerance No. of Flute SEM84500101 0.1 4 0.15 40 0~-0.012 h5 2 SEM84500101E 0.1 4 0.15 40 0~-0.012 h5 2 SEM84500201 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500201E 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500202 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500301 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500302 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500303E 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500304E 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500305 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500401E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500402 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500402E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500403 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500403E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500404 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500404E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500405 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500405E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500406 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500406E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500408 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500408E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500410E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500501E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500502 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500502E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500503 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500503E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500504 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500504E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500505 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500505E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500506 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500508 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500510 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500510E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500512 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500512E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500514E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500516 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500602 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500602E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500603 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500603E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500604 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500604E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500605 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500605E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500606 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500606E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500608 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500608E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500610 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500610E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500612 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500612E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500614 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500614E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500616 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500616E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500702 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500702E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500704 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500706 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500706E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500708 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500710 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500712 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500712E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500803 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500804 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500805 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500805E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500806 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500806E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500808 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500810 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500810E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500812 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500814 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500816 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500816E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500820 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500820E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500906 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500906E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500908E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500910E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84501002 1 4 1.5 50 0~-0.012 h5 2 SEM84501002E 1 4 1.5 50 0~-0.012 h5 2 SEM84501003 1 4 1.5 50 0~-0.012 h5 2 SEM84501003E 1 4 1.5 50 0~-0.012 h5 2 SEM84501004 1 4 1.5 50 0~-0.012 h5 2 SEM84501004E 1 4 1.5 50 0~-0.012 h5 2 SEM84501005 1 4 1.5 50 0~-0.012 h5 2 SEM84501005E 1 4 1.5 50 0~-0.012 h5 2 SEM84501006 1 4 1.5 50 0~-0.012 h5 2 SEM84501006E 1 4 1.5 50 0~-0.012 h5 2 SEM84501007 1 4 1.5 50 0~-0.012 h5 2 SEM84501008 1 4 1.5 50 0~-0.012 h5 2 SEM84501008E 1 4 1.5 50 0~-0.012 h5 2 SEM84501010 1 4 1.5 50 0~-0.012 h5 2
EDP No. Mill Diameter (D1) ShankDia (D2) Length of Cut (L1) Overall Length (L2) Mill Dia. Tolerance Shank Dia. Tolerance No. of Flute SEM84500101 0.1 4 0.15 40 0~-0.012 h5 2 SEM84500101E 0.1 4 0.15 40 0~-0.012 h5 2 SEM84500201 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500201E 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500202 0.2 4 0.3 40 0~-0.012 h5 2 SEM84500301 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500302 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500303E 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500304E 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500305 0.3 4 0.5 40 0~-0.012 h5 2 SEM84500401E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500402 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500402E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500403 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500403E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500404 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500404E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500405 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500405E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500406 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500406E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500408 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500408E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500410E 0.4 4 0.6 40 0~-0.012 h5 2 SEM84500501E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500502 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500502E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500503 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500503E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500504 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500504E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500505 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500505E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500506 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500508 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500510 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500510E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500512 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500512E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500514E 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500516 0.5 4 0.7 45 0~-0.012 h5 2 SEM84500602 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500602E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500603 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500603E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500604 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500604E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500605 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500605E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500606 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500606E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500608 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500608E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500610 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500610E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500612 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500612E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500614 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500614E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500616 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500616E 0.6 4 0.9 45 0~-0.012 h5 2 SEM84500702 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500702E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500704 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500706 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500706E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500708 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500710 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500712 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500712E 0.7 4 1.2 45 0~-0.012 h5 2 SEM84500803 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500804 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500805 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500805E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500806 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500806E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500808 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500810 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500810E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500812 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500814 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500816 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500816E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500820 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500820E 0.8 4 1.2 45 0~-0.012 h5 2 SEM84500906 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500906E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500908E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84500910E 0.9 4 1.3 45 0~-0.012 h5 2 SEM84501002 1 4 1.5 50 0~-0.012 h5 2 SEM84501002E 1 4 1.5 50 0~-0.012 h5 2 SEM84501003 1 4 1.5 50 0~-0.012 h5 2 SEM84501003E 1 4 1.5 50 0~-0.012 h5 2 SEM84501004 1 4 1.5 50 0~-0.012 h5 2 SEM84501004E 1 4 1.5 50 0~-0.012 h5 2 SEM84501005 1 4 1.5 50 0~-0.012 h5 2 SEM84501005E 1 4 1.5 50 0~-0.012 h5 2 SEM84501006 1 4 1.5 50 0~-0.012 h5 2 SEM84501006E 1 4 1.5 50 0~-0.012 h5 2 SEM84501007 1 4 1.5 50 0~-0.012 h5 2 SEM84501008 1 4 1.5 50 0~-0.012 h5 2 SEM84501008E 1 4 1.5 50 0~-0.012 h5 2 SEM84501010 1 4 1.5 50 0~-0.012 h5 2

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