End Mills

An end mill is a type of cutting tool that is used in milling applications. End Mills have cutting edges on the end and sides of the shank enabling them to cut in all directions.


Why use an end mill?


The end mill removes material by their movement within the milling machine or from the cutter’s shape.


The number of flutes (spirals on the end mill) give different results:



  • 2 flutes allow maximum space for chip ejection and are used for general milling operations

  • 3 flutes is an excellent choice for slotting, it has a larger cross-section and is used in general milling operations

  • 4, 5, 6 and 8 flutes can improve the surface finish if the feed rate remains the same. A greater number of flutes reduces chip load and produces a much finer finish

What types of End Mills are available?


End cut types:



  • Centre cutting end mills have one or more cutting edges at the tip to allow the user to plunge, drill or ramp into a cut.

  • Non-Centre cutting end mills have peripheral teeth that allow the user to side cut or contour an external surface.

Shank Types



  • End mills with a plain shank are used with a collet style holder and are the most common shank type

  • End mills with a Weldon shank have one or two flats with set screws in the holder that tighten on the flanks of flats to hold the mill to prevent it
    from rotating

Typical applications of End Mills


End mills are used for profiling milling, face milling, tracer milling, semi-finishing and finishing.


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Description Price Cutter Diameter Cut Length Material Overall Length Shank Type Shank Diameter Centre Cutting Diameter Tolerance
RS Stock No. 523-0521
BrandRS PRO
$20.01
Each
units
1.5mm 4mm HSS 28 mm Weldon 6 mm - -
RS Stock No. 523-0436
BrandRS PRO
$21.11
Each
units
1mm 2mm HSCo 24.5 mm Weldon 6 mm - -
RS Stock No. 185-7558
BrandRS PRO
$439.31
1 Set
Set(s)
3 mm, 4 mm, 6 mm, 8 mm 9.5 mm, 12.5 mm HSCo 54 mm, 57 mm, 60.5 mm, 63.5 mm, 66.5 mm, 70 mm, 73 mm, 77 mm, 80 mm, 83.5 mm Screwed 6 mm, 12 mm, 16 mm Yes -
RS Stock No. 523-0458
BrandRS PRO
$18.69
Each
units
2mm 3mm HSCo 25.5 mm Weldon 6 mm - -
RS Stock No. 523-0565
BrandRS PRO
$18.18
Each
units
3.5mm 8.5mm HSS 36.5 mm Weldon 6 mm - -
RS Stock No. 523-0464
BrandRS PRO
$18.27
Each
units
2.5mm 4mm HSCo 26 mm Weldon 6 mm - -
RS Stock No. 523-0571
BrandRS PRO
$17.93
Each
units
4mm 9.5mm HSS 39 mm Weldon 6 mm - -
RS Stock No. 523-0543
BrandRS PRO
$17.66
Each
units
2.5mm 6.5mm HSS 32 mm Weldon 6 mm - -
RS Stock No. 523-0537
BrandRS PRO
$20.11
Each
units
2mm 4.5mm HSS 29 mm Weldon 6 mm - -
RS Stock No. 523-0492
BrandRS PRO
$16.10
Each
units
4mm 6.5mm HSCo 32.5 mm Weldon 6 mm - -
RS Stock No. 523-0559
BrandRS PRO
$20.11
Each
units
3mm 7.5mm HSS 34 mm Weldon 6 mm - -
RS Stock No. 136-8073
BrandRS PRO
$246.32
Each
units
8 mm, 10 mm, 12 mm, 16 mm, 20 mm - HSS 100 mm Screwed - Yes -
RS Stock No. 523-0470
BrandRS PRO
$16.10
Each
units
3mm 4.5mm HSCo 28 mm Weldon 6 mm - -
RS Stock No. 523-0593
BrandRS PRO
$18.38
Each
units
5mm 12.5mm HSS 44.5 mm Weldon 6 mm - -
RS Stock No. 523-0486
BrandRS PRO
$14.96
Each
units
3.5mm 5.5mm HSCo 30 mm Weldon 6 mm - -
RS Stock No. 523-0600
BrandRS PRO
$17.66
Each
units
6mm 16mm HSS 48 mm Weldon 6 mm - -
RS Stock No. 523-0515
BrandRS PRO
$16.10
Each
units
6mm 9.5mm HSCo 36 mm Weldon 6 mm - -
RS Stock No. 523-0509
BrandRS PRO
$16.10
Each
units
5mm 7.5mm HSCo 36 mm Weldon 6 mm - -
RS Stock No. 666-6716
Mfr. Part No.S9049.0
BrandDormer
$61.49
Each
units
9mm 21mm Solid Carbide 72 mm Plain 10 mm Yes h12
RS Stock No. 728-7989
Mfr. Part No.C2478.0
BrandDormer
$81.15
Each
units
8mm 19mm HSCo 69 mm Weldon 10 mm Yes k10
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