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End MillMade in USA

TS-401-10

4 Flute Stub Length Tuffy Grade Carbide End Mill

0.3125-in Dia 4-Flute End Mill, 0.5-in LOC, 0.3125-in Shank, 2.5-in OAL

OrderingTS-401-10·Uncoated·$68.25Change finish

4 Flute Stub Length Tuffy Grade Carbide End Mill — TS-401-10
Series photo — representative of the TS-401 family
OAL 2.5″Flute 0.5″Shank Ø0.3125″Cutter Ø0.3125″Square
Scaled drawing — true to this tool's dimensions (inch)
Speeds & FeedsDialed to this exact tool — free
Free CAD & DataSTEP 3DDXF 2DISO CSVCAM library
RobbJack TS-201 2-flute stub length Tuffy grade carbide end mill

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.

TS-301 3-flute stub length Tuffy grade carbide end mill
TS-401 4-flute stub length Tuffy grade carbide end mill

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
0.3125″
Diameter ToleranceDC tol
0.0000/-0.0020
Max Cutting DiameterDCX
0.3125″
Shank DiameterDMM
0.3125″
Length of Cut (LOC)APMX
0.5″
Overall Length (OAL)OAL
2.5″
Number of FlutesNOF
4
Helix AngleFHA
30°
Helix HandFHH
Right-hand
Cut Direction
Right-hand cut
End Type
Square End
Center Cutting
Yes — plunges
Series
TS-401 — 4 Flute Stub Length Tuffy Grade Carbide End Mill

Cuts these materials

AluminumCopper & BrassTitaniumMagnesiumCast IronSteel

Applications

Side MillingHigh PerformanceRoughingSemi-FinishingFinishingDryWetCold AirSpray Mist

See it run

Tolerances

TypeMinMax
Cutting Diameter0-0.003
Length of Cut+0.030
Overall Length+0.06-0.06
Shank Diameter-0.0001-0.0002

Choose the finish(5 options)

Compare →

Each finish is a different part number and price.

Not sure? Compare tool coatings — or leave it uncoated, the most common choice for aluminum.

Uncoated · your price$68.25

Part TS-401-10

Made & shipped in the USA · lead time confirmed at order. Test this tool in your spindle at retail, or get it through your RobbJack distributor.

Performance guaranteed. Run it against the tool you use today — if it doesn't beat it, we'll make it right.

Adds TS-401-10 · Uncoated · $68.25

Calculate Speeds & Feeds
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Download ISO 13399 data (.csv)

Proven in the field

See the case studies →

Uncoated

$68.25

TS-401-10

Starting speeds & feeds for the TS-401-10

Dial in for your machine →

RobbJack's tested starting numbers for this exact tool, from the same engine and the same default machine as the calculator: a 12,000 RPM / 400 IPM / 30 HP machining center, rigid setup, full-depth cut. A faster or smaller spindle changes the RPM and feed — enter yours in the calculator and it re-governs every number.

Starting speeds and feeds for RobbJack TS-401-10
MaterialOperationSFMRPMFeed (IPM)Chip load / toothDOC (in)WOC (in)
6AL-4V TitaniumRoughing — full slot2302,81216.9.00150.1563.3125
6AL-4V TitaniumFinishing2302,8129.00080.3125.0078

Read before you run

Recommendations are computed starting points based on typical conditions — not guarantees of performance, tool life, or fitness for your application. Machining involves inherent risk: you are solely responsible for safe operation, for verifying every parameter against your machine, spindle, toolholding, workholding, and guarding limits, and for proving all parameters on a test cut before production. RobbJack Corporation assumes no liability for tool breakage, machine damage, scrapped parts, production loss, or personal injury arising from use of these recommendations. By using this calculator you accept RobbJack's Terms & Conditions.

More in the TS-401 series

Same series, different size — what changes from this tool is shown in red.