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End MillRouterMade in USA

WRU-301-16

3 Flute Stub Rougher Solid Carbide Upshear Router

0.5-in Dia 3-Flute End Mill, 1.5-in LOC, 0.5-in Shank, 3.5-in OAL

3 Flute Stub Rougher Solid Carbide Upshear Router — WRU-301-16
Series photo — representative of the WRU-301 family
OAL 3.5″Flute 1.5″Shank Ø0.5″Cutter Ø0.5″Square
Scaled drawing — true to this tool's dimensions (inch)
Speeds & FeedsDialed to this exact tool — free
RobbJack WRU-303 three flute rougher solid carbide upshear router with serrated roughing profile

3 Flute Rougher Solid Carbide Upshear Router — Spiral Routers for Rough Cutting

  • 3 flute solid carbide upshear ROUGHER — serrated roughing profile breaks chips small for fast, heavy stock removal
  • 30° helix, square end with corner chamfer
  • WRU-301 stub rougher (1/2"–3/4" dia., 3-1/2"–5" OAL) and WRU-303 standard rougher (1/2"–3/4" dia., 4"–5" OAL, plus 16mm metric: 16mm dia. × 55mm flute × 118mm OAL)
  • Deliberately ground undersize for roughing: cutting dia. tolerance −.003/−.007; shank dia. −.0001/−.0002; flute length +.060/−.000; OAL ±.060
  • Applications: slotting, side milling, helical interpolation, ramping, roughing, semi-finishing — dry, wet, cold air, or spray mist
  • Materials: wood, aluminum, copper, magnesium, brass
  • Diamond-Like Carbon (DLC) coating available
  • Guitar building: WRU/WRD Series handle roughing of blanks and bodies (Applications Guide p.194)

From the RobbJack Applications Guide.

About this series

WRU Rougher Solid Carbide Upshear Routers

3 flute upshear rougher routers for fast wood and plastics stock removal

The WRU series is a 3 flute solid carbide upshear rougher spiral router with a square end and 30 degree helix, offered in stub (WRU-301) and standard (WRU-303) rougher lengths for wood and plastics rough cutting. DLC coating available.

  • 3 flute upshear rougher, square end, 30 degree helix
  • Stub and standard rougher lengths
  • DLC coating available

Wood, aluminum, copper, magnesium, brass

Headline spec

Rougher, 3 flute upshear, 30 degree helix

Best for

  • Rough cutting
  • Slotting and side milling
  • Helical interpolation and ramping

Specifications

US machining terms with ISO 13399 codes.

Cutting DiameterDC
0.5″
Diameter ToleranceDC tol
0.0000/-0.0020
Max Cutting DiameterDCX
0.5″
Shank DiameterDMM
0.5″
Length of Cut (LOC)APMX
1.5″
Overall Length (OAL)OAL
3.5″
Corner ChamferCHW
0.020/0.030
Number of FlutesNOF
3
Helix AngleFHA
30°
Helix HandFHH
Right-hand
Cut Direction
Right-hand cut
End Type
Square End
Center Cutting
Yes — plunges
Shear Direction
Up-shear
Series
WRU-301 — 3 Flute Stub Rougher Solid Carbide Upshear Router

Cuts these materials

Wood

Applications

SlottingConventionalHigh PerformanceHigh-SpeedRoughingSemi-FinishingDry

See it run

Tolerances

TypeMinMax
Cutting Diameter-0.003-0.007
Length of Cut+0.060
Overall Length+0.06-0.06
Shank Diameter-0.0001-0.0002
Starting at$201.10

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 Diamond-Like Carbon (DLC) · $227.65 — our pick for your material. Choose another finish below.

Calculate Speeds & FeedsDownload ISO 13399 data (.csv)

Finishes (2)

Compare tool coatings →

Starting at

$201.10

Performance guaranteed

More in the WRU-301 series

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