UN Long Reach Thread Mill (TMLR)
Scientific Cutting Tools’ Long Reach Thread Mills (TMLR) make small thread milling easy while delivering exceptional precision in deep-threading applications. Designed for minimal cutting pressure, these tools are ideal for machining difficult-to-thread materials while maintaining accuracy and tool life.
With an economical cost per hole, TMLR thread mills provide a cost-effective solution for precision thread milling. They are capable of cutting UNC, UNF, UNEF, and UNS threads, as well as internal UNJ threads for aerospace, automotive, and high-performance machining applications.
For enhanced performance, our AlTiN+ coating allows for higher Surface Feet per Minute (SFM), improving efficiency and wear resistance in ferrous materials. Manufactured in the USA, SCT’s TMLR tools ensure exceptional rigidity, durability, and reliable performance for deep-threading operations.
Thread/Pitch | A (Tool Diameter) | B (Length of Cut) | C (Neck Diameter) | Q (Length) | S (Shank Diameter) | OAL | Flutes | Uncoated Tool # | Uncoated EDP # | AlTiN+ EDP # |
---|---|---|---|---|---|---|---|---|---|---|
0-80 | 0.042 | 0.120 | 0.024 | 0.006 | 0.250 | 2.50 | 3 | TMLR042-80 | 110883 | 110885 |
0-80 | 0.042 | 0.180 | 0.024 | 0.006 | 0.250 | 2.50 | 3 | TMLR042-80EL | 110887 | 110889 |
1-64 | 0.052 | 0.150 | 0.030 | 0.006 | 0.250 | 2.50 | 3 | TMLR052-64 | 110891 | 110893 |
1-64 | 0.052 | 0.210 | 0.030 | 0.006 | 0.250 | 2.50 | 3 | TMLR052-64EL | 110895 | 110897 |
1-72 | 0.052 | 0.180 | 0.033 | 0.007 | 0.250 | 2.50 | 3 | TMLR052-72 | 110899 | 110901 |
1-72 | 0.052 | 0.250 | 0.033 | 0.007 | 0.250 | 2.50 | 3 | TMLR052-72EL | 110903 | 110905 |
2-56 | 0.065 | 0.180 | 0.039 | 0.009 | 0.250 | 2.50 | 3 | TMLR065-56 | 110501 | 110603 |
2-56 | 0.065 | 0.210 | 0.039 | 0.009 | 0.250 | 2.50 | 3 | TMLR065-56EL | 110504 | 110606 |
2-56 | 0.065 | 0.290 | 0.039 | 0.009 | 0.250 | 2.50 | 3 | TMLR065-56XL | 110505 | 110607 |
3-48 | 0.073 | 0.200 | 0.044 | 0.010 | 0.250 | 2.50 | 3 | TMLR073-48 | 110907 | 110909 |
3-48 | 0.073 | 0.280 | 0.044 | 0.010 | 0.250 | 2.50 | 3 | TMLR073-48EL | 110911 | 110913 |
4-40 | 0.082 | 0.225 | 0.046 | 0.013 | 0.250 | 2.50 | 3 | TMLR082-40 | 110507 | 110609 |
4-40 | 0.082 | 0.300 | 0.046 | 0.013 | 0.250 | 2.50 | 3 | TMLR082-40EL | 110510 | 110612 |
4-40 | 0.082 | 0.400 | 0.046 | 0.013 | 0.250 | 2.50 | 3 | TMLR082-40XL | 110915 | 110917 |
6-32 | 0.100 | 0.260 | 0.056 | 0.016 | 0.250 | 2.50 | 3 | TMLR100-32 | 110513 | 110615 |
6-32 | 0.100 | 0.400 | 0.056 | 0.016 | 0.250 | 2.50 | 3 | TMLR100-32EL | 110516 | 110618 |
6-32 | 0.100 | 0.540 | 0.056 | 0.016 | 0.250 | 2.50 | 3 | TMLR100-32XL | 110919 | 110921 |
6-40 | 0.100 | 0.260 | 0.065 | 0.013 | 0.250 | 2.50 | 3 | TMLR100-40 | 110519 | 110621 |
6-40 | 0.100 | 0.400 | 0.065 | 0.013 | 0.250 | 2.50 | 3 | TMLR100-40EL | 110522 | 110624 |
6-40 | 0.100 | 0.540 | 0.065 | 0.013 | 0.250 | 2.50 | 3 | TMLR100-40XL | 110923 | 110925 |
8-32 | 0.126 | 0.300 | 0.080 | 0.016 | 0.250 | 2.50 | 3 | TMLR126-32 | 110525 | 110627 |
8-32 | 0.126 | 0.500 | 0.080 | 0.016 | 0.250 | 2.50 | 3 | TMLR126-32EL | 110528 | 110630 |
8-32 | 0.126 | 0.700 | 0.085 | 0.016 | 0.250 | 2.50 | 3 | TMLR126-32XL | 110927 | 110929 |
8-36 | 0.126 | 0.300 | 0.085 | 0.014 | 0.250 | 2.50 | 3 | TMLR126-36 | 110531 | 110633 |
8-36 | 0.126 | 0.500 | 0.085 | 0.014 | 0.250 | 2.50 | 3 | TMLR126-36EL | 110534 | 110636 |
10-24 | 0.139 | 0.400 | 0.080 | 0.021 | 0.250 | 2.50 | 3 | TMLR139-24 | 110537 | 110639 |
10-24 | 0.139 | 0.600 | 0.080 | 0.021 | 0.250 | 2.50 | 3 | TMLR139-24EL | 110540 | 110642 |
10-24 | 0.139 | 0.750 | 0.080 | 0.021 | 0.250 | 2.50 | 3 | TMLR139-24XL | 110935 | 110937 |
10-32 | 0.139 | 0.400 | 0.093 | 0.016 | 0.250 | 2.50 | 3 | TMLR139-32 | 110543 | 110645 |
10-32 | 0.139 | 0.600 | 0.093 | 0.016 | 0.250 | 2.50 | 3 | TMLR139-32EL | 110546 | 110648 |
10-32 | 0.139 | 0.750 | 0.093 | 0.016 | 0.250 | 2.50 | 3 | TMLR139-32XL | 110939 | 110941 |
10-48 | 0.139 | 0.400 | 0.106 | 0.010 | 0.250 | 2.50 | 3 | TMLR139-48 | 110549 | 110651 |
10-48 | 0.139 | 0.600 | 0.106 | 0.010 | 0.250 | 2.50 | 3 | TMLR139-48EL | 110552 | 110654 |
1/4-20 | 0.186 | 0.500 | 0.112 | 0.025 | 0.250 | 2.50 | 3 | TMLR186-20 | 110555 | 110657 |
1/4-20 | 0.186 | 0.700 | 0.112 | 0.025 | 0.250 | 2.50 | 3 | TMLR186-20EL | 110558 | 110660 |
1/4-20 | 0.186 | 0.900 | 0.112 | 0.025 | 0.250 | 2.50 | 3 | TMLR186-20XL | 110947 | 110949 |
1/4-28 | 0.186 | 0.500 | 0.130 | 0.018 | 0.250 | 2.50 | 3 | TMLR186-28 | 110561 | 110663 |
1/4-28 | 0.186 | 0.700 | 0.130 | 0.018 | 0.250 | 2.50 | 3 | TMLR186-28EL | 110564 | 110666 |
1/4-28 | 0.186 | 0.900 | 0.130 | 0.018 | 0.250 | 2.50 | 3 | TMLR186-28XL | 110951 | 110953 |
1/4-32 | 0.186 | 0.500 | 0.140 | 0.016 | 0.250 | 2.50 | 3 | TMLR186-32 | 110567 | 110669 |
1/4-32 | 0.186 | 0.700 | 0.140 | 0.016 | 0.250 | 2.50 | 3 | TMLR186-32EL | 110570 | 110672 |
1/4-32 | 0.186 | 0.900 | 0.140 | 0.016 | 0.250 | 2.50 | 3 | TMLR186-32XL | 110955 | 110957 |
5/16-18 | 0.234 | 0.600 | 0.156 | 0.028 | 0.250 | 2.50 | 3 | TMLR234-18 | 110573 | 110675 |
5/16-18 | 0.234 | 0.850 | 0.156 | 0.028 | 0.250 | 2.50 | 3 | TMLR234-18EL | 110576 | 110678 |
5/16-18 | 0.234 | 1.100 | 0.156 | 0.028 | 0.250 | 2.50 | 3 | TMLR234-18XL | 110959 | 110961 |
5/16-24 | 0.234 | 0.600 | 0.176 | 0.021 | 0.250 | 2.50 | 3 | TMLR234-24 | 110579 | 110681 |
5/16-24 | 0.234 | 0.850 | 0.176 | 0.021 | 0.250 | 2.50 | 3 | TMLR234-24EL | 110582 | 110684 |
5/16-24 | 0.234 | 1.100 | 0.176 | 0.021 | 0.250 | 2.50 | 3 | TMLR234-24XL | 110963 | 110965 |
5/16-28 | 0.234 | 0.600 | 0.180 | 0.018 | 0.250 | 2.50 | 3 | TMLR234-28 | 110585 | 110687 |
5/16-28 | 0.234 | 0.850 | 0.180 | 0.018 | 0.250 | 2.50 | 3 | TMLR234-28EL | 110588 | 110690 |
5/16-28 | 0.234 | 1.100 | 0.180 | 0.018 | 0.250 | 2.50 | 3 | TMLR234-28XL | 110967 | 110969 |
5/16-32 | 0.234 | 0.600 | 0.188 | 0.016 | 0.250 | 2.50 | 3 | TMLR234-32 | 110591 | 110693 |
5/16-32 | 0.234 | 0.850 | 0.188 | 0.016 | 0.250 | 2.50 | 3 | TMLR234-32EL | 110594 | 110696 |
5/16-32 | 0.234 | 1.100 | 0.188 | 0.016 | 0.250 | 2.50 | 3 | TMLR234-32XL | 110971 | 110973 |
5/16-40 | 0.234 | 0.600 | 0.194 | 0.013 | 0.250 | 2.50 | 3 | TMLR234-40 | 110597 | 110699 |
5/16-40 | 0.234 | 0.850 | 0.194 | 0.013 | 0.250 | 2.50 | 3 | TMLR234-40EL | 110600 | 110702 |
5/16-40 | 0.234 | 1.100 | 0.194 | 0.013 | 0.250 | 2.50 | 3 | TMLR234-40XL | 110975 | 110977 |
3/8-16 | 0.285 | 0.750 | 0.191 | 0.031 | 0.375 | 3.50 | 3 | TMLR285-16 | 110705 | 110771 |
3/8-16 | 0.285 | 1.000 | 0.191 | 0.031 | 0.375 | 3.50 | 3 | TMLR285-16EL | 110708 | 110774 |
3/8-16 | 0.285 | 1.400 | 0.191 | 0.031 | 0.375 | 3.50 | 3 | TMLR285-16XL | 110979 | 110981 |
3/8-24 | 0.285 | 0.750 | 0.222 | 0.021 | 0.375 | 3.50 | 3 | TMLR285-24 | 110711 | 110777 |
3/8-24 | 0.285 | 1.000 | 0.222 | 0.021 | 0.375 | 3.50 | 3 | TMLR285-24EL | 110714 | 110780 |
3/8-24 | 0.285 | 1.400 | 0.222 | 0.021 | 0.375 | 3.50 | 3 | TMLR285-24XL | 110983 | 110985 |
3/8-32 | 0.285 | 0.750 | 0.235 | 0.016 | 0.375 | 3.50 | 3 | TMLR285-32 | 110717 | 110783 |
3/8-32 | 0.285 | 1.000 | 0.235 | 0.016 | 0.375 | 3.50 | 3 | TMLR285-32EL | 110720 | 110786 |
7/16-14 | 0.340 | 0.800 | 0.235 | 0.036 | 0.375 | 3.50 | 3 | TMLR340-14 | 110723 | 110789 |
7/16-14 | 0.340 | 1.200 | 0.235 | 0.036 | 0.375 | 3.50 | 3 | TMLR340-14EL | 110726 | 110792 |
7/16-14 | 0.340 | 1.700 | 0.235 | 0.036 | 0.375 | 3.50 | 3 | TMLR340-14XL | 110991 | 110993 |
7/16-18 | 0.340 | 0.800 | 0.258 | 0.028 | 0.375 | 3.50 | 3 | TMLR340-18 | 110729 | 110795 |
7/16-18 | 0.340 | 1.200 | 0.258 | 0.028 | 0.375 | 3.50 | 3 | TMLR340-18EL | 110732 | 110798 |
7/16-20 | 0.340 | 0.800 | 0.265 | 0.025 | 0.375 | 3.50 | 3 | TMLR340-20 | 110735 | 110801 |
7/16-20 | 0.340 | 1.200 | 0.265 | 0.025 | 0.375 | 3.50 | 3 | TMLR340-20EL | 110738 | 110804 |
7/16-20 | 0.340 | 1.700 | 0.265 | 0.025 | 0.375 | 3.50 | 3 | TMLR340-20XL | 110999 | 111001 |
1/2-12 | 0.370 | 0.800 | 0.245 | 0.042 | 0.375 | 3.50 | 3 | TMLR370-12 | 110741 | 110807 |
1/2-12 | 0.370 | 1.200 | 0.245 | 0.042 | 0.375 | 3.50 | 3 | TMLR370-12EL | 110744 | 110810 |
1/2-12 | 0.370 | 1.800 | 0.245 | 0.042 | 0.375 | 3.50 | 3 | TMLR370-12XL | 111003 | 111005 |
1/2-13 | 0.370 | 0.800 | 0.255 | 0.038 | 0.375 | 3.50 | 3 | TMLR370-13 | 110747 | 110813 |
1/2-13 | 0.370 | 1.200 | 0.255 | 0.038 | 0.375 | 3.50 | 3 | TMLR370-13EL | 110750 | 110816 |
1/2-13 | 0.370 | 1.800 | 0.255 | 0.038 | 0.375 | 3.50 | 3 | TMLR370-13XL | 111007 | 111009 |
1/2-18 | 0.370 | 0.800 | 0.287 | 0.028 | 0.375 | 3.50 | 3 | TMLR370-18 | 110753 | 110819 |
1/2-18 | 0.370 | 1.200 | 0.287 | 0.028 | 0.375 | 3.50 | 3 | TMLR370-18EL | 110756 | 110822 |
1/2-20 | 0.370 | 0.800 | 0.295 | 0.025 | 0.375 | 3.50 | 3 | TMLR370-20 | 110759 | 110825 |
1/2-20 | 0.370 | 1.200 | 0.295 | 0.025 | 0.375 | 3.50 | 3 | TMLR370-20EL | 110762 | 110828 |
1/2-20 | 0.370 | 1.800 | 0.295 | 0.025 | 0.375 | 3.50 | 3 | TMLR370-20XL | 111015 | 111017 |
1/2-32 | 0.370 | 0.800 | 0.315 | 0.016 | 0.375 | 3.50 | 3 | TMLR370-32 | 110765 | 110831 |
1/2-32 | 0.370 | 1.200 | 0.315 | 0.016 | 0.375 | 3.50 | 3 | TMLR370-32EL | 110768 | 110834 |
5/8-11 | 0.470 | 1.200 | 0.335 | 0.045 | 0.500 | 4.00 | 4 | TMRL470-11 | 110837 | 110861 |
5/8-11 | 0.470 | 1.750 | 0.335 | 0.045 | 0.500 | 4.00 | 4 | TMRL470-11EL | 110840 | 110864 |
5/8-11 | 0.470 | 2.300 | 0.335 | 0.045 | 0.500 | 4.00 | 4 | TMRL470-11XL | 111023 | 111025 |
3/4-10 | 0.495 | 1.200 | 0.345 | 0.050 | 0.500 | 4.00 | 4 | TMLR495-10 | 110843 | 110867 |
3/4-10 | 0.495 | 1.750 | 0.345 | 0.050 | 0.500 | 4.00 | 4 | TMLR495-10EL | 110846 | 110870 |
3/4-10 | 0.495 | 2.400 | 0.345 | 0.050 | 0.500 | 4.00 | 4 | TMLR495-10XL | 111027 | 111029 |
3/4-12 | 0.495 | 1.200 | 0.370 | 0.042 | 0.500 | 4.00 | 4 | TMLR495-12 | 110849 | 110873 |
3/4-12 | 0.495 | 1.750 | 0.370 | 0.042 | 0.500 | 4.00 | 4 | TMLR495-12EL | 110852 | 110876 |
3/4-12 | 0.495 | 2.400 | 0.370 | 0.042 | 0.500 | 4.00 | 4 | TMLR495-12XL | 111031 | 111033 |
3/4-16 | 0.495 | 1.200 | 0.395 | 0.031 | 0.500 | 4.00 | 4 | TMLR495-16 | 110855 | 110879 |
3/4-16 | 0.495 | 1.750 | 0.395 | 0.031 | 0.500 | 4.00 | 4 | TMLR495-16EL | 110858 | 110882 |
3/4-16 | 0.495 | 2.400 | 0.395 | 0.031 | 0.500 | 4.00 | 4 | TMLR495-16XL | 111035 | 111037 |