End Mills

An end mill is a type of cutting tool that is used in milling applications.
They have cutting edges on the end and sides of the shank enabling them to cut in all directions.
The purpose of an end mill
The end mill remove 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 flute allows maximum space for chip ejection and is used for general milling operations
• 3 flute is an excellent choice for slotting, it has a larger cross section and is used in general milling operations
• 4, 5, 6 and 8 flute 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
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
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 Number of Flutes Material Overall Length Shank Type Shank Diameter Centre Cutting Diameter Tolerance
RS Stock No. 728-7888
Mfr. Part No.C2734.0
BrandDormer
TWD1,474
Each
units
4mm 19mm 4 HSCo 63 mm Weldon 6 mm Yes K10
RS Stock No. 523-0486
BrandRS PRO
TWD244
Each
units
3.5mm 5.5mm 3 HSCo 30 mm Weldon 6 mm - -
RS Stock No. 666-6690
Mfr. Part No.S9042.5
BrandDormer
TWD619
Each
units
2.5mm 9mm 4 Solid Carbide 38 mm Plain 3 mm Yes H12
RS Stock No. 171-2443
Mfr. Part No.K-109-41
BrandHozan
TWD234
Each
units
2.3mm 6mm - HSS - - 2.35 mm - -
RS Stock No. 728-7960
Mfr. Part No.C2474.5
BrandDormer
TWD1,320
Each
units
4.5mm 13mm 4 HSCo 55 mm Weldon 6 mm Yes K10
RS Stock No. 728-7891
Mfr. Part No.C2737.0
BrandDormer
TWD1,914
Each
units
7mm 30mm 4 HSCo 80 mm Weldon 10 mm Yes K10
RS Stock No. 728-7967
Mfr. Part No.C2474.0
BrandDormer
TWD1,210
Each
units
4mm 11mm 4 HSCo 55 mm Weldon 6 mm Yes K10
RS Stock No. 728-8008
Mfr. Part No.C24718.0
BrandDormer
TWD3,399
Each
units
18mm 32mm 4 HSCo 92 mm Weldon 16 mm Yes K10
RS Stock No. 359-6784
Mfr. Part No.C273-2.00
BrandDormer
TWD1,056
Each
units
2mm 10mm 4 HSCo 54 mm Weldon 6 mm Yes K10
RS Stock No. 728-7920
Mfr. Part No.C27314.0
BrandDormer
TWD2,728
Each
units
14mm 53mm 4 HSCo 110 mm Weldon 12 mm Yes K10
RS Stock No. 666-6722
Mfr. Part No.S90414.0
BrandDormer
TWD2,139
Each
units
14mm 30mm 4 Solid Carbide 83 mm Plain 14 mm Yes H12
RS Stock No. 523-0515
BrandRS PRO
TWD244
Each
units
6mm 9.5mm 3 HSCo 36 mm Weldon 6 mm - -
RS Stock No. 728-7995
Mfr. Part No.C24712.0
BrandDormer
TWD1,980
Each
units
12mm 26mm 4 HSCo 83 mm Weldon 12 mm Yes K10
RS Stock No. 466-100
Mfr. Part No.C247 11,0
BrandDormer
TWD1,460
Each
units
11mm 79mm 4 HSCo 79 mm Weldon 12 mm Yes K10
RS Stock No. 523-0464
BrandRS PRO
TWD242
Each
units
2.5mm 4mm 3 HSCo 26 mm Weldon 6 mm - -
RS Stock No. 866-0613
Mfr. Part No.25A2R080A25-SLN12-C
BrandPramet
TWD14,340
Each
units
25mm 80mm 2 - 170 mm Plain 25 mm - H6
RS Stock No. 523-0492
BrandRS PRO
TWD244
Each
units
4mm 6.5mm 3 HSCo 32.5 mm Weldon 6 mm - -
RS Stock No. 728-7841
Mfr. Part No.C2475/16
BrandDormer
TWD1,159
Each
units
5/16in 19mm 4 HSS-E-PM 69 mm Weldon 10 mm - K10
RS Stock No. 666-6693
Mfr. Part No.S9043.0
BrandDormer
TWD518
Each
units
3mm 12mm 4 Solid Carbide 38 mm Plain 3 mm Yes H12
RS Stock No. 728-7908
Mfr. Part No.C2733/8
BrandDormer
TWD1,556
Each
units
3/8in 45mm 4 HSS-E-PM 95 mm Weldon 10 mm - K10