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MFPN66 planning head for inserts PNMU090508 - FMB clip-on holder

Kortools

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€61.84

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MFPN66-50-22-4T

MFPN66-63-22-5T

MFPN66-80-27-6T

MFPN66-100-32-7T

MFPN66-125-40-8T

MFPN66-160-40-10T

MFPN66-200-60-12T

MFPN66-250-60-14T

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Product description

MFPN66 face milling cutter — PNMU090508

1. MFPN66 face milling cutter

MFPN66 is an arbor-mounted face milling cutter for PNMU090508 inserts. The body is made of 42CrMo steel and has a 66° entering angle. The selected variant defines the cutter diameter, mounting bore and number of insert pockets.

Feature	Specification
Family	MFPN66
Primary operation	Facing / face milling
Body material	42CrMo
Entering angle	66°
Insert system	PNMU090508
Mounting	FMB arbor mounting
Through-tool coolant	Not provided

2. Applications

The cutter is intended for face milling and material removal at increased feed rates. The workpiece material and cutting conditions must be matched to the grade and geometry of the installed PNMU090508 insert. The cutter body code does not specify the insert grade.

Operation	Application
Face milling	The primary application is machining flat surfaces with the cutter face.
Material removal at increased feed	Settings must be matched to the insert, workpiece, workholding and machine.
Plunge milling	Only under specifically selected machining conditions; not a universal operating mode for every setup.

The feed and cutting-speed values below are starting points for trials. They do not guarantee a particular output or identical settings across all cutter sizes and materials.

3. FMB mounting and variant selection

Match the cutter to the mounting diameter of the FMB arbor. The mounting bore is a different dimension from the cutter diameter. Both are included in the selected variant code and shown on its information card.

Parameter	Meaning when selecting
Cutter diameter	The working diameter of the tool; not the mounting diameter.
Mounting bore	The bore diameter corresponding to the selected FMB mounting size.
Number of pockets	The number of inserts when all cutter pockets are populated.
Coolant arrangement	This body has no through-tool coolant. Contact Kortools about a body with internal coolant passages.

Select the required size to view its parameters. The illustrative photograph shows the MFPN66 family; the selected variant parameters define its diameter, mounting bore and pocket count.

4. Understanding the designation

The designation combines the cutter family, angle, working diameter, mounting bore and number of pockets. The final letter T refers to the number of insert pockets, not the number of cutting edges on one insert.

Designation element	Meaning
MFPN	Cutter family
66	66° entering angle
First number after the family designation	Cutter diameter in millimetres
Next number	Mounting bore diameter in millimetres
Number preceding T	Number of insert pockets in the body

For example, 63, 22 and 5T indicate a Ø63 mm cutter, a Ø22 mm bore and five pockets. This example explains the notation; choose the required item in the variant selector.

5. Inserts and supplied accessories

The body accepts PNMU090508 inserts. The insert is double-sided and provides 10 cutting edges. The edge count of an individual insert is separate from the cutter pocket count.

Item	Information
Compatible insert	PNMU090508
Cutting edges per insert	10, double-sided design
Body	42CrMo steel
Supplied wrench	T15
Supplied screws	M4×10 mm

Select the insert grade for the workpiece material and machining conditions. It is not specified by the cutter body designation. The installed inserts in the illustrative photograph show how they are seated; the photograph does not identify their grade or coating.

6. Cutting data — starting values

The following ranges provide starting points for machining trials. Actual settings depend on the insert grade, workpiece, holder, machine rigidity and power, workholding and coolant. Perform trials and adjust the settings to suit process stability.

Workpiece material	Feed per tooth fz [mm/tooth]	Cutting speed Vc [m/min]
Carbon steel (SxxC)	0.1–0.35	120–250
Alloy steel (SCM and similar)	0.1–0.35	100–220
Die steel (SKD)	0.1–0.4	80–180
Austenitic stainless steel (SUS304 and similar)	0.1–0.4	100–200
Martensitic stainless steel (SUS403 and similar)	0.1–0.4	100–200
Precipitation-hardening stainless steel (SUS630 and similar)	0.1–0.4	90–150
Grey cast iron (FC)	0.1–0.4	120–250
Nodular cast iron (FCD)	0.1–0.4	100–200
Nickel-based alloys (Inconel and similar)	0.1–0.35	20–50

C55 steel machining example: Vc = 250 m/min, fz = 0.4 mm/tooth, ap = 2 mm and ae = 70 mm. This is an example of machining conditions, not a universal setting for every cutter diameter or setup.

Symbol	Quantity
Vc	Cutting speed [m/min]
fz	Feed per tooth [mm/tooth]
ap	Depth of cut [mm]
ae	Width of cut [mm]

7. Selection before purchase

Check the body size, mounting arrangement and insert system together. Selection by cutter diameter alone does not account for the FMB mounting bore or the number of pockets.

Check	Compare with
Cutter diameter	The planned operation and the selected variant parameters.
FMB mounting bore	The mounting diameter of your arbor.
Insert system	The PNMU090508 designation.
Pocket count	The final T designation in the selected cutter code.
Coolant requirement	This version has no through-tool coolant.

If you need a different coolant arrangement or assistance with insert selection, provide the workpiece material, selected cutter code and mounting arrangement.

8. Questions and answers

Which inserts fit this cutter?
The PNMU090508 system. Select the specific insert grade for the workpiece and machining conditions.

Does T indicate the number of edges on an insert?
No. T indicates the number of pockets in the cutter. A double-sided PNMU090508 insert has 10 cutting edges.

Does the cutter have internal coolant?
This version has no through-tool coolant. Ask about a body with internal coolant passages if your application requires them.

Where can I check the selected size?
On the card assigned to the selected variant. It provides cutter diameter, mounting and pocket count; the shared photograph is illustrative.

Can the stated cutting data be used without trials?
They are starting values. Adjust them for the insert, material, machine and workholding while monitoring a trial cut.