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Shoulder milling cutter for steel and cast iron

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Mill 4-12KT™ • Shell Mill • Inch

Name: Mill 4-12KT™ • Shell Mill • Inch
SKU: 6524720
Rating: 0 (0 reviews)

Shoulder milling cutter for steel and cast iron

Metric

Inch

SAP Material Number	6524720
ISO Catalog Number	KT4D300Z07S100LN12L175
ANSI Catalog Number	KT4D300Z07S100LN12L175
[D1] Effective Cutting Diameter	76.2 mm
[D1] Effective Cutting Diameter	3 in
[D] Adapter / Shank / Bore Diameter	25.4 mm
[D] Adapter / Shank / Bore Diameter	1 in
[D6] Hub Diameter	55.562 mm
[D6] Hub Diameter	2.187 in
[L] Overall Length	44.45 mm
[L] Overall Length	1.75 in
[AP1MAX] 1st Maximum Cutting Depth	12.145 mm
[AP1MAX] 1st Maximum Cutting Depth	.4782 in
Number of Inserts	7
Weight Pounds	1.87
Max RPM	19600

See all Product Variants

Workpiece Materials

P Steel

M Stainless Steel

K Cast Iron

S High-Temp Alloys

H Hardened Materials

Features and benefits

Fine, coarse, and medium pitch cutters.

Advanced insert/pocket interface ensures stability and consistent performance in difficult applications.

Up to 15% lower power consumption.

Easy insert indexing through screw clamping.

Machine Side

Workpiece Side

Insert Selection Guide

Mill 4-12KT™ • Insert Selection Guide
Material Group	Light Machining		General Purpose		Heavy Machining
–	(Light geometry)		–		(Strong geometry)
–	wear resistance		<="" td="">		toughness
–	Geometry	Grade	Geometry	Grade	Geometry	Grade
P1-P2	.E..GE	KC522M	.E..PU	KCPM40	.E..HD	KCPM40
P3-P4	.E..GE	KC522M	.E..PU	KCPM40	.E..HD	KCPM40
P5-P6	.E..GE	KC522M	.E..PU	KC725M	.E..HD	KCPK30
M1-M2	.E..GE	KC522M	.E..PU	KCSM40	.E..HD	KCPM40
M3	.E..GE	KC522M	.E..GE	KCSM40	.E..HD	KCPM40
K1-K2	.E..GE	KCK15	.E..PU	KCK20B	.E..HD	KCK15
K3	.E..GE	KCK20B	.E..PU	KCK20B	.E..HD	KCK20B
N1-N2	–	–	–	–	–	–
N3	–	–	–	–	–	–
S1-S2	.E..GE	KC522M	.E..PU	KCSM40	–	–
S3	.E..GE	KC522M	.E..GE	KCSM40	–	–
S4	.E..GE	KC522M	.E..GE	KCSM40	–	–
H1	–	–	–	–	–	–

Recommended Starting Feeds [mm]

Mill 4-12KT™ • Recommended Starting Feeds [mm/th]
Insert Geometry	Recommended Starting Feed per Tooth (Fz) in Relation to % of Radial Engagement (ae)
	10%			20%			30%			40%			50–100%
	L	M	H	L	M	H	L	M	H	L	M	H	L	M	H
.E..GE	0,12	0,33		0,09	0,25		0,08	0,22		0,07	0,2		0,07	0,2
.E..PU	0,12	0,35	0,45	0,09	0,3	0,4	0,08	0,25	0,35	0,07	0,2	0,33	0,07	0,2	0,3
.E..HD	0,12	0,35	0,55	0,09	0,3	0,44	0,08	0,25	0,38	0,07	0,2	0,36	0,07	0,2	0,35
L = Light Machining; M = Medium Machining; H = Heavy Machining NOTE: Use Light Machining values as starting feed rate.

Recommended Starting Feeds [IPT]

Mill 4-12KT™ • Recommended Starting Feeds [IPT]
Insert Geometry	Recommended Starting Feed per Tooth (Fz) in Relation to % of Radial Engagement (ae)
	10%			20%			30%			40%			50–100%
	L	M	H	L	M	H	L	M	H	L	M	H	L	M	H
.E..GE	0.005	0.013		0.004	0.01		0.003	0.009		0.003	0.008		0.003	0.008
.E..PU	0.005	0.014	0.018	0.004	0.012	0.016	0.003	0.01	0.014	0.003	0.008	0.013	0.003	0.008	0.012
.E..HD	0.005	0.014	0.022	0.004	0.012	0.017	0.003	0.01	0.015	0.003	0.008	0.014	0.003	0.008	0.014
L = Light Machining; M = Medium Machining; H = Heavy Machining NOTE: Use Light Machining values as starting feed rate.

Recommended Starting Speeds [m/min]

Mill 4™-12KT • Recommended Starting Speeds [m/min]
Grade		KC522M			KCK15			KCK20B			KCPK30			KCPM40			KCSM40			KC725M
Chip Thickness hex mm		Min		Max	Min		Max	Min		Max	Min		Max	Min		Max	Min		Max	Min		Max
Material Group		Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min
P	1	1085	935	885	–	–	–	–	–	–	1495	1295	1215	970	855	805	1150	1050	985	855	755	705
	2	900	785	655	–	–	–	–	–	–	920	835	755	820	705	590	985	885	720	720	625	525
	3	835	705	575	–	–	–	–	–	–	835	755	675	755	640	525	920	785	640	655	560	460
	4	740	605	490	–	–	–	–	–	–	625	575	525	675	560	445	785	675	540	590	490	395
	5	605	560	490	–	–	–	–	–	–	855	755	690	560	510	445	655	590	525	490	445	395
	6	540	410	330	–	–	–	–	–	–	525	445	360	490	375	295	590	460	330	425	330	260
M	1	675	590	540	–	–	–	–	–	–	675	605	510	640	560	510	855	625	375	560	490	445
	2	605	525	425	–	–	–	–	–	–	605	525	460	575	490	410	755	560	345	510	425	360
	3	460	395	310	–	–	–	–	–	–	475	425	375	425	375	295	625	460	280	375	330	260
K	1	755	675	605	1380	1250	1115	1180	950	8	970	870	785	–	–	–	–	–	–	–	–	–
	2	590	525	490	1100	970	900	920	755	640	770	690	625	–	–	–	–	–	–	–	–	–
	3	490	445	395	920	820	755	690	575	525	640	575	525	–	–	–	–	–	–	–	–	–
N	1	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
	2	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
	3	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
S	1	130	115	80	–	–	–	–	–	–	–	–	–	130	115	100	195	150	80	115	100	80
	2	130	115	80	–	–	–	–	–	–	–	–	–	130	115	100	180	130	80	115	100	80
	3	165	130	80	–	–	–	–	–	–	–	–	–	165	130	95	215	150	100	150	115	80
	4	165	150	115	–	–	–	–	–	–	–	–	–	180	165	115	245	195	130	165	150	100
H	1	395	295	230	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
As the average chip thickness increases, speed should be decreased. Material groups P, M, K and H show recommended starting speeds for dry machining. For wet machining, reduce speed by 20%. Material groups N and S show recommended starting speeds for wet machining. Not recommended for dry machining.

Recommended Starting Speeds [SFM]

Mill 4-12KT™ • Recommended Starting Speeds [SFM]
Grade		KC522M			KCK15			KCK20B			KCPK30			KCPM40			KCSM40			KC725M
Chip Thickness hex Inch		Min		Max	Min		Max	Min		Max	Min		Max	Min		Max	Min		Max	Min		Max
Material Group		Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min	Max	Start	Min
P	1	1085	935	885	–	–	–	–	–	–	1495	1295	1215	970	855	805	1150	1050	985	855	755	705
	2	900	785	655	–	–	–	–	–	–	920	835	755	820	705	590	985	885	720	720	625	525
	3	835	705	575	–	–	–	–	–	–	835	755	675	755	640	525	920	785	640	655	560	460
	4	740	605	490	–	–	–	–	–	–	625	575	525	675	560	445	785	675	540	590	490	395
	5	605	560	490	–	–	–	–	–	–	855	755	690	560	510	445	655	590	525	490	445	395
	6	540	410	330	–	–	–	–	–	–	525	445	360	490	375	295	590	460	330	425	330	260
M	1	675	590	540	–	–	–	–	–	–	675	605	510	640	560	510	855	625	375	560	490	445
	2	605	525	425	–	–	–	–	–	–	605	525	460	575	490	410	755	560	345	510	425	360
	3	460	395	310	–	–	–	–	–	–	475	425	375	425	375	295	625	460	280	375	330	260
K	1	755	675	605	1380	1265	1115	1180	950	805	970	870	785	–	–	–	–	–	–	–	–	–
	2	590	525	490	1100	970	900	920	755	640	770	690	625	–	–	–	–	–	–	–	–	–
	3	490	445	395	920	820	755	690	575	460	640	575	525	–	–	–	–	–	–	–	–	–
N	1	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
	2	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
	3	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
S	1	130	115	80	–	–	–	–	–	–	–	–	–	130	115	100	195	150	80	115	100	80
	2	130	115	80	–	–	–	–	–	–	–	–	–	130	115	100	180	130	80	115	100	80
	3	165	130	80	–	–	–	–	–	–	–	–	–	165	130	100	215	150	100	150	115	80
	4	165	150	115	–	–	–	–	–	–	165	150	115	180	165	115	245	195	130	165	150	100
H	1	395	295	230	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
As the average chip thickness increases, speed should be decreased. Material groups P, M, K and H show recommended starting speeds for dry machining. For wet machining, reduce speed by 20%. Material groups N and S show recommended starting speeds for wet machining. Not recommended for dry machining.

Spare Parts for Mill 4-12KT™ • Shell Mill • Inch

Spare Part ANTI-SEIZE LUBRICANT

TORX PLUS DRIVE WRENCH DT15IP

INSERT SCR M4-0.7 x 11.5 IP15

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Mill 4-12KT™ • Shell Mill • Inch