WTL-303-04
3 Flute Extra Length Solid Carbide Upshear Router
0.125-in Dia 3-Flute End Mill, 1-in LOC, 0.125-in Shank, 3-in OAL
OrderingWTL-303-04·Uncoated·$88.45Change finish
3 Flute Extra-Long Solid Carbide Upshear Router — reach for thick stock and deep profiles
- 3 flute solid carbide upshear spiral router in EXTRA-LONG length for thick stock, deep profiling, and long-reach trimming
- 30° helix, square end with corner chamfer
- WTL-303 sizes: 1/8"–3/4" dia.; flute lengths 1"–3"; overall lengths 3"–5-1/4" (e.g. 3/4" dia. × 3" flute × 5-1/4" OAL)
- Tighter cutting-diameter tolerances than WU/WD: 1/8" = −.0001/−.0002; 3/16"–3/4" = −.000/+.001; 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
- 3 flutes give more cutting edges per revolution than the 2-flute WU1/WD1 — higher feed rates at CNC production speeds
From the RobbJack Applications Guide.
About this series
WTL Extra Long Solid Carbide Upshear Routers
3 flute extra-long upshear routers for deep wood and plastics cuts
The WTL-303 is a 3 flute, extra-long, solid carbide upshear spiral router with a square end and 30 degree helix, for wood and plastics CNC production. Offered in 1/8" to 3/4" cutting diameters with overall lengths up to 5-1/4". DLC coating available.
- 3 flute upshear, extra long, square end, 30 degree helix
- Cutting diameters 1/8" to 3/4"
- DLC coating available
Wood, aluminum, copper, magnesium, brass, plastics
Headline spec
Extra long, 3 flute upshear, 30 degree helix
Best for
- Slotting and side milling
- Helical interpolation and ramping
- Roughing and semi-finishing
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 0.125″
- Diameter ToleranceDC tol
- -0.0010/-0.0020
- Max Cutting DiameterDCX
- 0.125″
- Shank DiameterDMM
- 0.125″
- Length of Cut (LOC)APMX
- 1″
- Overall Length (OAL)OAL
- 3″
- Number of FlutesNOF
- 3
- Helix AngleFHA
- 30°
- Helix HandFHH
- Right-hand
- Cut Direction
- Right-hand cut
- End Type
- Square End
- Center Cutting
- Yes — plunges
- Series
- WTL-303 — 3 Flute Extra Length Solid Carbide Upshear Router
Cuts these materials
Applications
See it run
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | 0 | +0.001 |
| Length of Cut | +0.03 | 0 |
| Overall Length | +0.06 | -0.06 |
| Shank Diameter | -0.0001 | -0.0002 |
Choose the finish(2 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.
Part WTL-303-04
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.
Uncoated
$88.45
WTL-303-04
Starting speeds & feeds for the WTL-303-04
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.
| Material | Operation | SFM | RPM | Feed (IPM) | Chip load / tooth | DOC (in) | WOC (in) |
|---|---|---|---|---|---|---|---|
| Hardwoods | Roughing — full slot | 393 | 12,000 | 115.2 | .00320 | .1250 | .1250 |
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 WTL-303 series
Same series, different size — what changes from this tool is shown in red.
- WTL-303-06$98.70Ø 0.1875″LOC 1.125″3 FLOAL 3″
- WTL-303-08$116.50Ø 0.25″LOC 1.25″3 FLOAL 3″
- WTL-303-10$131.80Ø 0.3125″LOC 1.375″3 FLOAL 3″
- WTL-303-12$178.80Ø 0.375″LOC 1.5″OAL 3.5″3 FL
- WTL-303-16$292.30Ø 0.5″LOC 2″OAL 4″3 FL
- WTL-303-20$443.65Ø 0.625″LOC 2.5″OAL 4.625″3 FL
- WTL-303-24$788.90Ø 0.75″LOC 3″OAL 5″3 FL