UN Single Profile Thread Mill (SPTM)

Scientific Cutting Tools offers high-performance single profile thread mills, engineered for precision threading across a variety of materials. Available in 21 varieties, these tools can mill fine and coarse threads ranging from #00 to 1¼+, delivering exceptional accuracy and efficiency.

Made from solid carbide for maximum rigidity, our thread mills provide superior stability during machining. Long reach tools are available from stock for deep-threading applications. Designed to cut UNC, UNF, UNEF, UNS, and internal UNJ threads, they offer outstanding versatility for aerospace, automotive, and general machining industries.

For ferrous materials, our AlTiN+ coating enhances heat resistance and wear protection, while TaC coating optimizes performance in non-ferrous materials. SCT’s American-made thread mills ensure high precision, long tool life, and exceptional surface finishes for your most demanding threading applications.

How to Buy

Technical Support

Minimum Internal Thread	A (Tool Diameter)	B (Length of Cut)	C (Neck Diameter)	Q (Length)	S (Shank Diameter)	OAL	Flutes	Internal Limits TPI	External Limits TPI	Uncoated Tool #	Uncoated EDP #	AlTiN+ EDP #	TaC EDP #

#00	0.032	0.060	0.018	0.005	0.1250	1.50	2	90 to 120	----	SPTM032	120001	120067	130300
#00	0.032	0.100	0.018	0.005	0.1250	1.50	2	90 to 120	----	SPTM032L	120004	120070	130301
#0	0.040	0.090	0.022	0.006	0.1250	1.50	2	80 to 100	90 to 100	SPTM040	120007	120073	130302
#0	0.040	0.109	0.022	0.006	0.1250	1.50	2	80 to 100	90 to 100	SPTM040ML	120013	120079	130304
#0	0.040	0.125	0.022	0.006	0.1250	1.50	2	80 to 100	90 to 100	SPTM040L	120010	120076	130303
#1	0.050	0.100	0.028	0.007	0.1250	1.50	3	64 to 80	72 to 80	SPTM050	120016	120082	130305
#1	0.050	0.125	0.028	0.007	0.1250	1.50	3	64 to 80	72 to 80	SPTM050ML	120022	120088	130307
#1	0.050	0.150	0.028	0.007	0.1250	1.50	3	64 to 80	72 to 80	SPTM050L	120019	120085	130306
#1	0.050	0.210	0.028	0.007	0.1250	1.50	3	64 to 80	72 to 80	SPTM050XL	120020	120086	130308
#2	0.059	0.125	0.034	0.008	0.1250	1.50	3	56 to 80	72 to 80	SPTM059	120025	120091	130309
#2	0.059	0.165	0.034	0.008	0.1250	1.50	3	56 to 80	72 to 80	SPTM059ML	120031	120097	130311
#2	0.059	0.200	0.034	0.008	0.1250	1.50	3	56 to 80	72 to 80	SPTM059L	120028	120094	130310
#2	0.059	0.250	0.034	0.008	0.1250	1.50	3	56 to 80	72 to 80	SPTM059XL	120029	120095	130312
#2	0.060	0.125	0.034	0.009	0.1875	2.00	3	56 to 80	72 to 80	SPTM060	120100	120214	130313
#2	0.060	0.165	0.034	0.009	0.1875	2.00	3	56 to 80	72 to 80	SPTM060ML	120106	120220	130315
#2	0.060	0.200	0.034	0.009	0.1875	2.00	3	56 to 80	72 to 80	SPTM060L	120103	120217	130314
#3	0.072	0.150	0.040	0.010	0.1875	2.00	3	48 to 80	56 to 80	SPTM072	120109	120223	130316
#3	0.072	0.250	0.040	0.010	0.1875	2.00	3	48 to 80	56 to 80	SPTM072L	120112	120226	130317
#3	0.072	0.300	0.040	0.010	0.1875	2.00	3	48 to 80	56 to 80	SPTM072XL	120113	120227	130318
#4	0.080	0.190	0.045	0.011	0.1875	2.00	3	40 to 80	48 to 80	SPTM080	120115	120229	130319
#4	0.080	0.250	0.045	0.011	0.1875	2.00	3	40 to 80	48 to 80	SPTM080ML	120121	120235	130321
#4	0.080	0.300	0.045	0.011	0.1875	2.00	3	40 to 80	48 to 80	SPTM080L	120118	120232	130320
#4	0.080	0.375	0.045	0.011	0.1875	2.00	3	40 to 80	48 to 80	SPTM080XL	120119	120233	130322
#5	0.090	0.200	0.048	0.013	0.1875	2.00	3	36 to 56	40 to 56	SPTM090	120422	120425	130323
#5	0.090	0.300	0.048	0.013	0.1875	2.00	3	36 to 56	40 to 56	SPTM090L	120431	120434	130324
#5	0.090	0.400	0.048	0.013	0.1875	2.00	3	36 to 56	40 to 56	SPTM090XL	120440	120443	130325
#6	0.098	0.250	0.050	0.015	0.1875	2.00	3	32 to 56	36 to 56	SPTM098	120124	120238	130326
#6	0.098	0.330	0.050	0.015	0.1875	2.00	3	32 to 56	36 to 56	SPTM098M	120130	120244	130328
#6	0.098	0.400	0.050	0.015	0.1875	2.00	3	32 to 56	36 to 56	SPTM098L	120127	120241	130327
#8	0.120	0.300	0.070	0.016	0.1875	2.00	3	32 to 56	32 to 56	SPTM120	120133	120247	130329
#8	0.120	0.400	0.070	0.016	0.1875	2.00	3	32 to 56	32 to 56	SPTM120ML	120139	120253	130331
#8	0.120	0.500	0.070	0.016	0.1875	2.00	3	32 to 56	32 to 56	SPTM120L	120136	120250	130330
#10	0.138	0.400	0.075	0.020	0.1875	2.00	3	24 to 48	28 to 48	SPTM138	120142	120256	130332
#10	0.138	0.500	0.075	0.020	0.1875	2.00	3	24 to 48	28 to 48	SPTM138ML	120148	120262	130334
#10	0.138	0.600	0.075	0.020	0.1875	2.00	3	24 to 48	28 to 48	SPTM138L	120145	120259	130333
#12	0.160	0.400	0.080	0.025	0.1875	2.00	3	20 to 48	24 to 48	SPTM160	120151	120265	130335
#12	0.160	0.650	0.080	0.025	0.1875	2.00	3	20 to 48	24 to 48	SPTM160L	120154	120268	130336
1/4	0.182	0.400	0.104	0.025	0.2500	2.50	4	18 to 48	24 to 48	SPTM182	120271	120301	130337
1/4	0.182	0.530	0.104	0.025	0.2500	2.50	4	18 to 48	24 to 48	SPTM182ML	120277	120307	130339
1/4	0.182	0.650	0.104	0.025	0.2500	2.50	4	18 to 48	24 to 48	SPTM182L	120274	120304	130338
1/4	0.182	0.800	0.104	0.025	0.2500	2.50	4	18 to 48	24 to 48	SPTM182XL	120275	120305	130340
5/16	0.240	0.500	0.153	0.028	0.2500	2.50	4	16 to 48	20 to 48	SPTM240	120280	120310	130341
5/16	0.240	0.800	0.153	0.028	0.2500	2.50	4	16 to 48	20 to 48	SPTM240L	120283	120313	130342
5/16	0.240	1.100	0.153	0.028	0.2500	2.50	4	16 to 48	20 to 48	SPTM240XL	120284	120314	130343
3/8	0.290	0.600	0.192	0.031	0.3750	3.00	4	14 to 48	18 to 48	SPTM290	120316	120340	130344
3/8	0.290	1.000	0.192	0.031	0.3750	3.00	4	14 to 48	18 to 48	SPTM290L	120319	120343	130345
3/8	0.290	1.400	0.192	0.031	0.3750	3.00	4	14 to 48	18 to 48	SPTM290XL	120320	120344	130346
7/16	0.332	0.700	0.220	0.035	0.3750	3.00	4	14 to 48	16 to 48	SPTM332	120450	120453	130347
7/16	0.332	1.100	0.220	0.035	0.3750	3.00	4	14 to 48	16 to 48	SPTM332L	120459	120462	130348
7/16	0.332	1.500	0.220	0.035	0.3750	3.00	4	14 to 48	16 to 48	SPTM332XL	120468	120471	130349
1/2	0.372	0.850	0.240	0.041	0.3750	3.00	4	12 to 48	12 to 48	SPTM372	120322	120346	130350
1/2	0.372	1.250	0.240	0.041	0.3750	3.00	4	12 to 48	12 to 48	SPTM372L	120325	120349	130351
1/2	0.372	1.750	0.240	0.041	0.3750	4.00	4	12 to 48	12 to 48	SPTM372XL	120326	120350	130352
5/8	0.488	0.850	0.340	0.046	0.5000	3.50	5	11 to 32	11 to 32	SPTM488	120352	120364	130353
5/8	0.488	1.350	0.340	0.046	0.5000	3.50	5	11 to 32	11 to 32	SPTM488L	120355	120367	130354
5/8	0.488	2.000	0.340	0.046	0.5000	4.00	5	11 to 32	11 to 32	SPTM488XL	120356	120368	130355
3/4	0.595	1.250	0.430	0.051	0.6250	4.00	6	10 to 32	10 to 32	SPTM595	120370	120382	130566
3/4	0.595	2.000	0.430	0.051	0.6250	4.00	6	10 to 32	10 to 32	SPTM595L	120373	120385	130357
3/4	0.595	2.750	0.430	0.051	0.6250	5.00	6	10 to 32	10 to 32	SPTM595XL	120374	120386	130358
7/8	0.695	1.500	0.490	0.063	0.7500	5.00	6	8 to 24	8 to 24	SPTM695	120388	120412	130359
7/8	0.695	2.500	0.490	0.063	0.7500	5.00	6	8 to 24	8 to 24	SPTM695L	120391	120415	130360
7/8	0.695	3.250	0.490	0.063	0.7500	6.00	6	8 to 24	8 to 24	SPTM695XL	120392	120416	130361
1 1/4	0.745	1.500	0.400	0.107	0.7500	5.00	6	4 to 8	6 to 10	SPTM745	120394	120418	130362
1 1/4	0.745	2.500	0.400	0.107	0.7500	5.00	6	4 to 8	6 to 10	SPTM745L	120397	120421	130636
1 1/4	0.745	3.250	0.400	0.107	0.7500	6.00	6	4 to 8	6 to 10	SPTM745XL	120398	120423	130364

How to Buy

Technical Support