Milling Inserts

Milling inserts are removable cutting tips, which means they are not part of the milling machine. They are indexable which means that they can be exchanged and replaced once used. Milling inserts are used with milling cutting tools when cutting or shaping metals such as steel, alloy and cast iron. They're designed to protect your milling cutter from damage caused by extreme heat and force, ensuring longer tool life. This, in turn, can help you work more productively because your tool won't buckle or change shape.


Benefits and features of using milling inserts



  • They ensure secure machining with a long and predictable tool life

  • They have high metal removal rates and high reliability, even in challenging conditions, such as complex tool paths and deep cavities

  • They can perform in both dry and wet machining

  • There are different shapes and sizes available including circular, triangular, square and rectangular depending on the cut you need

  • How to fit and/or change your milling inserts


To fit or change your milling inserts, you need an Allen key or a screwdriver. There are clamps on the milling cutter that are screwed in. You need to undo the screws on the clamps and then insert the milling inserts. Finally, re-tighten the screws so that the milling insert is secure.


How to identify milling inserts and choose the right one?


There are many parameters to consider when choosing turning insert. Carefully select insert geometry, insert grade, insert shape (nose angle), insert size, nose radius and entering (lead) angle, to achieve good chip control and machining performance.


  • Select insert geometry based on selected operation, for example, finishing

  • Select the largest possible nose angle on the insert for strength and economy

  • Select the insert size depending on the depth of cut​

  • Select the largest possible nose radius for insert strength

  • Select a smaller nose radius if there is a tendency for vibration

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Description Price Shape Bore Diameter Side Length Type
RS Stock No. 866-0357
Mfr. Part No.TPKN 1603PDER:8230
BrandPramet
$163.74
1 Box of 10
Box(es)
Triangular 9.53mm 16.5mm Indexable
RS Stock No. 866-0607
Mfr. Part No.LNGX 120508ER-M:M8340
BrandPramet
$316.09
1 Box of 10
Box(es)
Rectangular 4.5mm 12mm Indexable
RS Stock No. 866-0647
Mfr. Part No.ADMX 160608SR-M:M9325
BrandPramet
$246.80
1 Box of 10
Box(es)
Rhombic 4.5mm 16mm Indexable
RS Stock No. 899-8472
Mfr. Part No.SEMT 09T3AFSN:M8340
BrandPramet
$202.86
1 Box of 10
Box(es)
Square 3.5mm 9.53mm Indexable
RS Stock No. 866-0348
Mfr. Part No.SPKR 1203EDSR:M9340
BrandPramet
$175.05
1 Box of 10
Box(es)
Square 12.7mm 12.7mm Indexable
RS Stock No. 866-0584
Mfr. Part No.PDKT 090530ER-FM:M8345
BrandPramet
$339.79
1 Box of 10
Box(es)
Pentagon 5.5mm 9mm Indexable
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