MCKNL / MCKNR external turning holder for CNMG inserts

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Select a variant to see available quantity pcs.

€16.90

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Quantity

pcs.

Shipping time: 24 hours

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Product description

MCKNL / MCKNR external turning holder for CNMG inserts

MCKNL / MCKNR indexable holder for external turning, using CNMG inserts. Clamping: top insert clamp. The final letter R, L or N in the five-letter holder designation identifies its hand.

Shank size, holder length and insert seat size are separate parameters. Read the selected variant designation before choosing an insert; shank width alone does not determine compatibility.

Application

For machining external workpiece surfaces on a lathe. Select R or L according to the required tool orientation; N identifies the neutral design. Choose the insert geometry, cutting grade and machining parameters for the operation and workpiece material.

Entering angle of this design: 75°.

Specifications

Parameter	Value
Holder family	MCKNL / MCKNR
Insert family	CNMG
Clamping	Top insert clamp
Hand	Left-hand (L) / Right-hand (R)
Cutting insert	Sold separately
Entering angle	75°
Insert corner angle	80°
Insert clearance angle	0°

Insert seat and insert size

The holder code suffix identifies the insert seat size. The same shank size may be available with different insert sizes. Match both the insert family and its size.

Holder code suffix	Insert family and size
12	CNMG 1204
16	CNMG 1606
19	CNMG 1906

The size designation does not specify corner radius, grade or chipbreaker. Select these insert features separately while preserving compatibility with the seat geometry and dimensions.

Shank and holder length

Shank [mm]	Overall length [mm]	Code suffix	Insert	Hand
16 × 16	100	12	CNMG 1204	L / R
20 × 20	125	12	CNMG 1204	L / R
25 × 25	150	12	CNMG 1204	L / R
25 × 25	150	16	CNMG 1606	L / R
32 × 32	170	12	CNMG 1204	L / R
32 × 32	170	16	CNMG 1606	L / R
32 × 32	170	19	CNMG 1906	L / R

Select the current variant using the product selector. The shank must fit the lathe toolholding arrangement; check shank size and overall length separately.

Clamping and parts

Insert clamping: Top insert clamp. The insert must seat in the selected holder design. Spare-part codes refer to the specific clamping system and insert seat size.

Seat size	Part	Designation
12	Insert seat shim	SC1204
12	Pin	CTM617
12	Clamp	HL1814
12	Screw	ML0625
12	Key	L3.0
16	Insert seat shim	SC1604
16	Pin	CTM822
16	Clamp	HL2217
16	Screw	ML0830
16	Key	L4.0 / L5.0
19	Insert seat shim	SC1904
19	Pin	CTM1022
19	Clamp	HL2217
19	Screw	ML0830
19	Key	L4.0 / L5.0

Reading the variant designation

Code element	Meaning
Letter designation	Holder family, geometry and clamping
R / L / N	Right-hand / left-hand / neutral
Two pairs of digits after the letters	Shank width and height [mm]
Letter following shank size	Holder length designation
Code suffix	Insert seat size

Tool selection

Check the insert family, seat size, shank, holder length and R/L/N design together. Choosing an insert grade for steel, cast iron, aluminium or another material does not change the required fit between insert and holder seat.