CD8-203-04
2 Flute Regular Length Downshear Solid Carbide Spiral Router on 1/4" Dia. Shank
0.125-in Dia 2-Flute End Mill, 0.5-in LOC, 0.25-in Shank, 2.5-in OAL
All sizes on 1/4" shanks for strength — spiral routers for signmaking, engraving and CNC production.
- Every size (1/16"-1/4" cutting dia) built on a 1/4" shank for strength and to fit standard router collets
- C8 = up-shear spiral (chips lift out of the cut); CD8 = down-shear spiral router (presses the surface down for chip-free top faces on laminates and signs)
- 2 flute stub (C8-201) and standard (C8-203); 3 flute stub (C8-301) and standard (C8-303); down-shear CD8 in 2 flute stub (CD8-201) and regular (CD8-203)
- 30° helix, square end with chamfer option, C-2 grade carbide
- DLC coated versions of every C8 size (-DLC)
- Materials: wood, aluminum, copper, magnesium, brass, plastics, composites
- Tolerances: cutting dia +.000/-.002 (1/16"-1/4"), shank dia -.0001/-.0002, OAL +/-.060
From the RobbJack Applications Guide.
About this series
CD8 Downshear Solid Carbide Spiral Routers
2 flute downshear spiral routers on 1/4" shanks for routing wood and plastics
The CD8 series is a 2 flute downshear solid carbide spiral router, a downshear companion to the C8 routers, offered in stub (CD8-201) and regular (CD8-203) lengths for signmaking, engraving and CNC production in wood and plastics. All sizes are on 1/4" shanks to fit router collets. Offered uncoated with optional DLC coating.
- 2 flute downshear spiral, square end, 30 degree helix
- Stub and regular lengths
- All sizes on 1/4" shanks to fit router collets
- Uncoated or DLC coated
Wood, aluminum, copper, magnesium, brass
Headline spec
Downshear, 2 flute, 30 degree helix, 1/4" shanks
Best for
- Signmaking and engraving routing
- CNC production routing
- Slotting, side milling, helical interpolation and ramping
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 0.125″
- Diameter ToleranceDC tol
- 0.0000/-0.0020
- Max Cutting DiameterDCX
- 0.125″
- Shank DiameterDMM
- 0.25″
- Length of Cut (LOC)APMX
- 0.5″
- Overall Length (OAL)OAL
- 2.5″
- Number of FlutesNOF
- 2
- Helix HandFHH
- Left-hand
- Cut Direction
- Right-hand cut
- Shank Blend Angle
- 15°
- End Type
- Square End
- Center Cutting
- Yes — plunges
- Shear Direction
- Down-shear
- Series
- CD8-203 — 2 Flute Regular Length Downshear Solid Carbide Spiral Router on 1/4" Dia. Shank
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 Diamond-Like Carbon (DLC) · $51.60 — 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 (2)
Uncoated
CD8-203-04
$48.20
Available to order
CD8-203-04-DLC
$51.60
Available to order
Starting at
$48.20
Performance guaranteed
More in the CD8-203 series
Same series, different size — what changes from this tool is shown in red.