High Performance Thread Mill Cutter / CNC End Mill Bits For Wood
Steel
KTC Thread Mill Cutter
Specifications:
The tungsten steel thread milling cutter is made of high-quality
ultrafine tungsten steel material at home and abroad, with bending
strength of 4300mpa and particle size of 0.4μm. With this kind of
tool, the cutting in thread milling of M1.0 and above can be
completed in an instant. Innovative thread milling cutter: core
hole drilling and thread milling can be completed in one working
step with only one cutter. Especially, thread milling cutter is
suitable for copper, aluminum, medium and high carbon steel, die
steel, pre-hardened steel and other material hole processing.
| Raw Material | GU25UF |
| WC | 88% |
| Co | 12% |
| TRS | >4300N/mm2 |
| Hardness | >92HRA |
| A.O.L | 50mm-90mm |
| Grain size | 0.4 μm |
| Upto | HRC60 |
| Flutes No | 3/4F |
| Suitable for | Aluminum,plastic and other materials |
Standard Sizes
| UN 60° Inner Thread Mill Cutter for Aluminum |
| Pitch (TPI) | UNC | UNF | UNEF | Shank Dia. | Edge Dia. | No. of Flutes | Flute Length | Overall Length | Bottom Hole Dia. |
| 36 | | No.8-36 | | 4 | 3 | 3 | 8.5 | 50 | 3.5 |
| 32 | | No.10-32 | No.12-3/8-32 | 4 | 3.5 | 3 | 11.1 | 50 | 4 |
| 28 | | No.12-28,1/4-28 | 7/16,1/2-28 | 4 | 4 | 3 | 11.8 | 50 | 4.6 |
| 28 | | 1/4-28 | 7/16,1/2-28 | 6 | 5 | 3 | 12.7 | 57 | 5.5 |
| 28 | | | 7/16,1/2-28 | 10 | 9.2 | 4 | 22.7 | 75 | 10.2 |
| 24 | No.10-24 | 5/16,3/8-24 | 9/16,11/16-24 | 4 | 3.2 | 3 | 10.6 | 50 | 3.8 |
| 24 | No.12-24 | 5/16,3/8-24 | 9/16,11/16-24 | 4 | 4 | 3 | 11.6 | 50 | 4.5 |
| 24 | | 5/16,3/8-24 | 9/16,11/16-24 | 6 | 6 | 3 | 15.9 | 57 | 6.8 |
| 24 | | 3/8-24 | 9/16,11/16-24 | 8 | 7.8 | 3 | 19.1 | 60 | 8.5 |
| 24 | | | 9/16,11/16-24 | 12 | 11.9 | 4 | 28.6 | 75 | 13.2 |
| 20 | 1/4-20 | 7/16,1/2-20 | 3/4,1-20 | 4 | 4 | 3 | 12.7 | 50 | 5.2 |
| 20 | | 7/16,1/2-20 | 3/4,1-20 | 10 | 9 | 4 | 22.9 | 75 | 9.8 |
| 20 | | 1/2-20 | 3/4,1-20 | 10 | 10 | 4 | 25.4 | 75 | 11.5 |
| 20 | | | 3/4,1-20 | 12 | 12 | 4 | 38.1 | 75 | 17.8 |
| 18 | 5/16-18 | 9/16 | 11/16,1-11/16-18 | 6 | 5.8 | 3 | 16.9 | 57 | 6.5 |
| 18 | | 9/16,5/8-18 | 11/16,1-11/16-18 | 10 | 10 | 4 | 29.6 | 75 | 12.8 |
| 16 | 3/8-16 | 3/4-16 | | 8 | 7.6 | 3 | 19.1 | 60 | 8 |
| 16 | | 3/4-16 | | 12 | 12 | 4 | 28 | 75 | 17.5 |
| 14 | 7/16-14 | 7/8-14 | | 8 | 8 | 3 | 20 | 60 | 9.3 |
| 14 | | 7/8-14 | | 16 | 16 | 4 | 39.9 | 90 | 20.5 |
| 13 | 1/2-13 | | | 8 | 8 | 3 | 20 | 60 | 10.8 |
| 12 | 9/16-12 | 1"1-1/2-12 | | 10 | 10 | 4 | 28 | 75 | 12.3 |
| 12 | | 1"1-1/2-12 | | 16 | 16 | 4 | 40 | 90 | 23.5 |
| 11 | 5/8-11 | | | 12 | 12 | 4 | 30 | 75 | 13.5 |
| 10 | 3/4-10 | | | 12 | 12 | 4 | 30 | 75 | 16.5 |
| 9 | 7/8-9 | | | 16 | 16 | 4 | 38 | 90 | 19.5 |
| 8 | 1-8 | | | 16 | 16 | 4 | 40 | 90 | 22 |
| UN 60° Outer Thread Mill Cutter for Aluminum |
| Pitch (TPI) | UNC | UNF | Shank Dia. | Edge Dia. | No. of Flutes | Flute Length | Overall Length |
| 32 | No.8-32 | | 6 | 6 | 3 | 11.91 | 50 |
| 28 | | No.12-28 | 6 | 6 | 3 | 12.7 | 50 |
| 24 | No.12-24 | | 6 | 6 | 3 | 12.7 | 50 |
| 20 | 1/4-20 | | 6 | 6 | 3 | 15.4 | 50 |
| 18 | 5/16-18 | | 8 | 8 | 3 | 16.93 | 60 |
| 16 | 3/8-16 | | 8 | 8 | 3 | 19.05 | 60 |
| 12 | 9/16-12 | | 12 | 12 | 4 | 29.6 | 75 |
| M ISO Standard 60°Inner Thread Mill Cutter for Steel |
| Pitch (mm) | M Coarse Thread | M Fine Thread | Shank Dia. | Edge Dia. | No. of Flutes | Flute Length | Overall Length | Bottom Hole Dia. |
| 0.5 | M3*0.5 | | 4 | 2.3 | 3 | 6 | 50 | 2.5 |
| 0.5 | | M6*0.5 | 4 | 4 | 3 | 10 | 50 | 5.5 |
| 0.5 | | M8-M12*0.5 | 6 | 6 | 3 | 13 | 50 | 7.5 |
| 0.6 | M3.5*0.6 | | 4 | 2.7 | 3 | 7 | 50 | 2.9 |
| 0.7 | M4*0.7 | | 4 | 3 | 3 | 8 | 50 | 3.3 |
| 0.75 | M4.5*0.75 | | 4 | 3.4 | 3 | 9 | 50 | 3.75 |
| 0.75 | | M10-M12*0.75 | 8 | 8 | 3 | 20 | 50 | 9.25 |
| 0.8 | M5*0.8 | | 4 | 4 | 3 | 10 | 50 | 4.2 |
| 1 | M6*1.0 | | 6 | 4.8 | 3 | 12 | 57 | 5.0 |
| 1 | | M8*1.0 | 6 | 6 | 3 | 16 | 57 | 7.0 |
| 1 | | M10*1.0 | 8 | 8 | 3 | 20 | 60 | 9.0 |
| 1 | | M12*1.0 | 10 | 10 | 4 | 22 | 75 | 11.0 |
| 1 | | M16*1.0 | 12 | 12 | 4 | 22 | 75 | 15.0 |
| 1 | | M20-M48*1.0 | 16 | 16 | 4 | 30 | 90 | 19.0 |
| 1.25 | M8*1.25 | | 6 | 6 | 3 | 16 | 57 | 6.75 |
| 1.25 | | M12-M14*1.25 | 10 | 10 | 4 | 25 | 75 | 10.75 |
| 1.5 | M10*1.5 | | 8 | 8 | 3 | 20 | 60 | 8.5 |
| 1.5 | | M12-M20*1.5 | 10 | 10 | 4 | 28 | 75 | 10.5 |
| 1.5 | | M14-M24*1.5 | 12 | 12 | 4 | 28 | 75 | 12.5 |
| 1.5 | | M20-M48*1.5 | 16 | 16 | 4 | 30 | 90 | 18.5 |
| 1.75 | M12*1.75 | | 10 | 9.8 | 4 | 30 | 75 | 10.25 |
| 2 | M14*2.0 | M15-M16*2.0 | 10 | 10 | 4 | 30 | 75 | 12.0 |
| 2 | M16*2.0 | M17-M20*2.0 | 12 | 12 | 4 | 30 | 75 | 14.0 |
| 2 | | M20-M80*2.0 | 16 | 16 | 4 | 40 | 90 | 18.0 |
| 2.5 | M18-M20*2.5 | | 14 | 14 | 4 | 36 | 85 | 15.5 |
| 2.5 | M20-M80*2.5 | | 16 | 16 | 4 | 40 | 90 | 17.5 |
| 3 | M24*3.0 | | 16 | 16 | 4 | 42 | 90 | 21.0 |
| 0.75 | | M6*0.75 | 6 | 4.8 | 3 | 12 | 60 | 5.25 |
| 0.75 | | M8*0.75 | 6 | 6 | 3 | 16 | 60 | 7.25 |
| 1.25 | | M10*1.25 | 8 | 8 | 3 | 20 | 60 | 8.75 |
| M ISO Standard 60°Outer Thread Mill Cutter for Steel |
| Pitch (mm) | M Coarse Thread | Shank Dia. | Edge Dia. | No. of Flutes | Flute Length | Overall Length |
| 0.5 | M3*0.5 | 4 | 4 | 3 | 6 | 50 |
| 0.7 | M4*0.7 | 4 | 4 | 3 | 8 | 50 |
| 0.75 | M4.5*0.75 | 4 | 4 | 3 | 9 | 50 |
| 0.8 | M5*0.8 | 4 | 4 | 3 | 10 | 50 |
| 1 | M6*1.0 | 6 | 6 | 3 | 13 | 57 |
| 1.25 | M8*1.25 | 6 | 6 | 3 | 16 | 57 |
| 1.5 | M10*1.5 | 8 | 8 | 3 | 20 | 60 |
| 1.75 | M12*1.75 | 10 | 10 | 4 | 28 | 75 |
| 2 | M14*2.0 | 10 | 10 | 4 | 30 | 75 |
| 2.5 | M18*2.5 | 14 | 14 | 4 | 36 | 85 |
| 3 | M24*3.0 | 16 | 16 | 4 | 40 | 90 |
CNC Thread Milling vs Tapping
Let’s get one thing out of the way up front–Tapping is faster than
CNC Thread Milling.
That being the case, you might wonder why anyone ever uses CNC
Thread Milling? There are a number of advantages CNC Thread Milling
has over Tapping that often make it the preferred choice including:
If you break a Threadmill, it won’t get stuck in the part. Removing
broken taps is painful, especially if the tap is embedded in a part
that’s already been machined at considerable expense. Thread
milling is often preferred for expensive components and late stage
machining for this reason.
The teeth of a threadmill are larger and stronger than taps because
of the reduced need for chip clearance. This makes them less likely
to break.
Thread Milling is better for harder materials because you can cut
the material in smaller steps, and speeds and feeds can span a
wider range than a tap, which is limited by the pitch of the thread
being tapped. Their use in hard materials is another reason they’re
almost always carbide.
Chip clearance is easier because a threadmill generates short,
comma-shaped chips whereas taps can create long stringy chips that
“bird nest”.
Thread Milling requires less horsepower than tapping, which may be
an advantage for lighter-weight CNC machines.
The lower cutting forces of thread milling can be advantageous in
long reach and thin wall applications where tool deflection and
chatter are problems.
A single threadmill of the right type can be used to cut many
thread sizes. A separate tap will be needed for each thread size.
On parts with multiple threads, there can be considerable
toolchange savings with thread milling. There is also savings in
reducing the amount of tooling inventory that must be kept on hand
for standard thread sizes.
You can thread mill odd-sized threads for proprietary applications.
A thread mill can be used to back chamfer the hole.
Thread mills have no need for special tension compression holders
or tapping heads. This is an advantage on CNC Machines that lack
rigid tapping capability.
Taps get increasingly expensive as size increases. At some point,
threadmill cutters are cheaper than very large taps.
While coolant can be used, most manufacturers suggest dry machining
is the first choice when thread milling. Exceptions would be
stainless steel (reduces work hardening), aluminum (reduces chip
welding), and cast iron (to keep the dust down). Otherwise, a good
compressed air blast will be fine.
That’s quite a long list of advantages for carbide thread mills
that may make them perfect for your application instead of tapping.
