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End MillRouterMade in USA

WD1-310-16

3 Flute Standard Length Solid Carbide Downshear Router

0.5-in Dia 3-Flute End Mill, 1.75-in LOC, 0.5-in Shank, 4-in OAL

OrderingWD1-310-16·$260.85

3 Flute Standard Length Solid Carbide Downshear Router — WD1-310-16
Series photo — representative of the WD1-310 family
OAL 4″Flute 1.75″Shank Ø0.5″Cutter Ø0.5″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 WD1-203 two flute solid carbide downshear spiral router, standard length

2 Flute Solid Carbide Downshear Spiral Router — clean top edges, no fuzzing or chip-out

  • 2 flute solid carbide downshear (down-cut) spiral router — flutes press the material DOWN, leaving a clean, splinter-free top surface on veneers, laminates, and thin sheets
  • 30° helix, square end with corner chamfer
  • WD1-201 stub length (3/16"–3/4" dia., 2"–4" OAL) and WD1-203 standard length (1/8"–3/4" dia., 1-1/2"–5-1/4" OAL, plus 16mm metric: 16mm dia. × 55mm flute × 118mm OAL)
  • Cutting dia. tolerance +.000/−.002 (1/16"–1/4") and +.000/−.003 (9/32"–3/4"); shank dia. −.0001/−.0002; 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, plastics
  • Diamond-Like Carbon (DLC) coating available
  • Guitar building: the WD1 Series is RobbJack's pick for pocketing and for purfling and binding (Applications Guide p.194)
  • WD1-310 variant: 3 flute, 10° helix, standard length downshear router for aluminum aircraft skins (1/2"–3/4" dia., p.71)

From the RobbJack Applications Guide.

About this series

WD1 Solid Carbide Downshear Routers

2 flute downshear spiral routers for wood, plastics and aluminum aircraft skins

The WD1 series is a 2 flute solid carbide downshear spiral router with a square end and 30 degree helix, offered in stub (WD1-201) and standard (WD1-203) lengths for wood and plastics CNC production. A 3 flute standard-length 10 degree helix version (WD1-310) is offered for routing aluminum aircraft skins, available with Mirror Edge for chatter reduction. DLC coating available.

  • 2 flute downshear, square end, 30 degree helix
  • Stub and standard lengths
  • WD1-310 3 flute, 10 degree helix version for aluminum aircraft skins
  • DLC coating available; Mirror Edge option for aircraft-skin version

Wood, aluminum, copper, magnesium, brass, plastics

Headline spec

Downshear, 2 flute, 30 degree helix

Best for

  • Slotting and side milling
  • Helical interpolation and ramping
  • Roughing and semi-finishing
  • Routing aluminum aircraft skins (WD1-310)

Specifications

US machining terms with ISO 13399 codes.

Cutting DiameterDC
0.5″
Diameter ToleranceDC tol
0.0010/-0.0020
Max Cutting DiameterDCX
0.501″
Shank DiameterDMM
0.5″
Length of Cut (LOC)APMX
1.75″
Overall Length (OAL)OAL
4″
Number of FlutesNOF
3
Helix AngleFHA
10°
Helix HandFHH
Left-hand
Cut Direction
Right-hand cut
End Type
Square End
Center Cutting
Yes — plunges
Shear Direction
Down-shear
Series
WD1-310 — 3 Flute Standard Length Solid Carbide Downshear Router

Cuts these materials

AluminumCopper & BrassMagnesiumPlastics

Applications

SlottingSide MillingRoughingSemi-FinishingFinishingDryWetCold AirSpray Mist

See it run

Tolerances

TypeMinMax
Cutting Diameter+0.001-0.002
Length of Cut+0.03+0.06
Overall Length+0.06-0.06
Shank Diameter-0.0001-0.0002
WD1-310-16In stock$260.85
Uncoated · your price$260.85

Part WD1-310-16

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 WD1-310-16 · · $260.85

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Download ISO 13399 data (.csv)

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Starting at

$260.85

WD1-310-16

Starting speeds & feeds for the WD1-310-16

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 WD1-310-16
MaterialOperationSFMRPMFeed (IPM)Chip load / toothDOC (in)WOC (in)
HardwoodsRoughing — full slot1,57212,000400.01111.4800.5000

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 WD1-310 series

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