TS-401-02
4 Flute Stub Length Tuffy Grade Carbide End Mill
0.0625-in Dia 4-Flute End Mill, 0.125-in LOC, 0.125-in Shank, 1.5-in OAL


Stub-length Tuffy grade square end mills in 2, 3, and 4 flute — short, rigid general-purpose cutters offered in five coating options.
- Square end stub-length Tuffy grade carbide in three flute counts: TS-201 (2 flute), TS-301 (3 flute), TS-401 (4 flute), all with 30° helix
- Stub flute lengths for rigidity — e.g. 1/4" diameter carries only a 1/2" flute length on a 2" OAL
- Inch sizes 1/16"–3/4" (2 and 4 flute; 3 flute runs 1/16"–1/2"); metric MTS-401 4 flute covers 2–20 mm
- Five coating options across the line: Uncoated, TiN, TiCN, AlTiN, and Diamond-Like Carbon (DLC) — ordered by suffix (-T, -C, -A, -DLC)
- 2 and 3 flute rated for slotting, side milling, and helical interpolation; 4 flute optimized for side milling
- Broad material range: aluminum, copper, titanium, magnesium, cast iron, steel, brass (plus wood on 2/3 flute)
- High-performance roughing, semi-finishing, and finishing — dry, wet, cold air, or spray mist
- Tolerances: cutting dia +.000/−.002 (1/16"–1/4") and +.000/−.003 (5/16"–3/4"); shank −.0001/−.0002; MTS cutting dia +.000/−.075 mm
From the RobbJack Applications Guide.


About this series
TS / MTS Stub Length Tuffy Grade Carbide End Mills
2, 3 and 4 flute stub-length square-end mills for steel and a wide range of materials
The TS series is a stub-length, square-end Tuffy Grade carbide end mill offered in 2 flute (TS-201), 3 flute (TS-301) and 4 flute (TS-401) configurations, with a 30 degree helix. MTS is the metric equivalent. Available uncoated and with TiN, TiCN, AlTiN and Diamond-Like Carbon (DLC) coatings.
- Square end with 30 degree helix
- Available in 2, 3 and 4 flute configurations
- Uncoated or TiN, TiCN, AlTiN, and DLC coated
- Metric MTS versions available
Aluminum, copper, titanium, magnesium, cast iron, steel, brass, wood
Headline spec
Stub length, 30 degree helix, 2/3/4 flute
Best for
- Slotting
- Side milling
- Helical interpolation
- High performance roughing through finishing
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 0.0625″
- Diameter ToleranceDC tol
- 0.0000/-0.0020
- Max Cutting DiameterDCX
- 0.0625″
- Shank DiameterDMM
- 0.125″
- Length of Cut (LOC)APMX
- 0.125″
- Overall Length (OAL)OAL
- 1.5″
- Number of FlutesNOF
- 4
- Helix AngleFHA
- 30°
- Helix HandFHH
- Right-hand
- Cut Direction
- Right-hand cut
- Shank Blend Angle
- 15°
- End Type
- Square End
- Center Cutting
- Yes — plunges
- Series
- TS-401 — 4 Flute Stub Length Tuffy Grade Carbide End Mill
Cuts these materials
Applications
See it run
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | 0 | -0.002 |
| Length of Cut | +0.03 | 0 |
| Overall Length | +0.06 | -0.06 |
| Shank Diameter | -0.0001 | -0.0002 |
Made & shipped in the USA · lead time confirmed at order. Buy at retail or through your distributor.
Performance guaranteed. Run it against the tool you use today — if it doesn't beat it, we'll make it right.
Adds Aluminum Titanium Nitride (AlTiN) · $29.80 — our pick for your material. Choose another finish below.
Proven in the field
- $548,290saved per year drilling carbon-fiber aircraft
- $216,000saved per year trimming aircraft skins
- 1,000%metal-removal increase in Inconel 718 (SPS)
Finishes (5)
Uncoated
TS-401-02
$28.00
Available to order
TS-401-02-A
$29.80
Available to order
TS-401-02-C
$29.65
Available to order
TS-401-02-T
$29.20
Available to order
TS-401-02-DLC
$31.35
Available to order
Starting at
$28.00
Performance guaranteed
More in the TS-401 series
Same series, different size — what changes from this tool is shown in red.
- TS-401-03$27.90Ø 0.0938″LOC 0.1875″4 FLOAL 1.5″
- TS-401-04$27.25Ø 0.125″LOC 0.25″4 FLOAL 1.5″
- TS-401-06$40.30Ø 0.1875″LOC 0.375″OAL 2″4 FL
- TS-401-08$45.85Ø 0.25″LOC 0.5″OAL 2″4 FL
- TS-401-10$56.35Ø 0.3125″LOC 0.5″OAL 2.5″4 FL
- TS-401-12$76.45Ø 0.375″LOC 0.625″OAL 2.5″4 FL
- TS-401-14$112.80Ø 0.4375″LOC 0.625″OAL 2.75″4 FL
- TS-401-16$127.00Ø 0.5″LOC 0.625″OAL 3″4 FL
- TS-401-20$239.10Ø 0.625″LOC 0.875″OAL 3.5″4 FL
- TS-401-24$367.35Ø 0.75″LOC 1″OAL 3.5″4 FL
- TS-201-02$28.002 FLØ 0.0625″LOC 0.125″OAL 1.5″
- TS-201-03$27.90Ø 0.0938″2 FLLOC 0.1875″OAL 1.5″