PM-108-08
1 Flute Up Shear Polished Flute Carbide Router for Plastics and Aluminum
0.25-in Dia 1-Flute End Mill, 0.75-in LOC, 0.25-in Shank, 2-in OAL
Best tool for plastics — polished single flute that eliminates material sticking to the tool and melting in the cut.
- 1 flute polished-flute design gives the chip the whole gullet, so soft plastics evacuate before they can re-weld or melt in the cut
- PM = up-shear (pulls chips up and out, best general chip clearance); PMD = down-shear (pushes down on the material for clean top surfaces and thin sheet hold-down); GTS = 2 flute straight (0° helix) for materials that must not lift at all
- Tuffy grade carbide substrate
- PM sizes 1/8"-1/2" including long versions (PM-108-06L, PM-108-08L); PMD in 1/8", 3/16", 1/4"; GTS in 1/8"-1/2"
- Metric MPM up-shear from 4mm to 12mm
- Also the best tool for gummy/soft aluminum — polished flute reduces material sticking to the tool
- Tolerances: cutting dia +0.000/-0.002, shank dia -0.0001/-0.0002, flute length +0.060/-0.000, OAL +/-0.060
- Materials: plastics, wood, aluminum; dry, wet, cold air, or spray mist
From the RobbJack Applications Guide.
About this series
PM / MPM / PMD / GTS Tuffy Grade Carbide Routers
The best tool for plastics.
RobbJack's Tuffy-grade carbide router bits include the PM (1-flute up-shear, polished), MPM (metric 1-flute up-shear), PMD (1-flute down-shear, polished), and GTS (2-flute straight flute) series. These uncoated, polished tools are the best tool for plastics, eliminating material sticking to the tool and melting in the cut.
- 1-flute up-shear (PM), 1-flute down-shear (PMD), and 2-flute straight (GTS) configurations
- Polished flutes
- Metric 1-flute up-shear (MPM) available
- Eliminates material sticking to the tool and melting in the cut
Aluminum, Plastics, Wood. Dry, Wet, Cold Air, or Spray Mist. Applications: slotting, side milling, helical interpolation, ramping, roughing, semi-finishing, finishing.
Best for
- Routing plastics without melting or material buildup
- Aluminum and wood routing
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 0.25″
- Diameter ToleranceDC tol
- 0.0000/-0.0020
- Max Cutting DiameterDCX
- 0.25″
- Shank DiameterDMM
- 0.25″
- Length of Cut (LOC)APMX
- 0.75″
- Overall Length (OAL)OAL
- 2″
- Number of FlutesNOF
- 1
- Helix AngleFHA
- 25°
- Helix HandFHH
- Right-hand
- Cut Direction
- Right-hand cut
- End Type
- Square End
- Center Cutting
- Yes — plunges
- Shear Direction
- Up-shear
- Series
- PM — 1 Flute Up Shear Polished Flute Carbide Router for Plastics and Aluminum
Cuts these materials
Applications
Features
See it run
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | 0 | -0.002 |
| Length of Cut | +0.06 | 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 Uncoated · $56.85 — 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 (1)
Uncoated
PM-108-08
$56.85
Available to order
Starting at
$56.85
Performance guaranteed
More in the PM series
Same series, different size — what changes from this tool is shown in red.
- PM-104-04$33.00Ø 0.125″LOC 0.5″1 FLOAL 2″
- PM-106-06$41.05Ø 0.1875″LOC 0.625″1 FLOAL 2″
- PM-108-04$56.85Ø 0.125″LOC 0.5″1 FLOAL 2″
- PM-108-06$56.85Ø 0.1875″LOC 0.625″1 FLOAL 2″
- PM-108-06L$82.05Ø 0.1875″LOC 1.25″OAL 3″1 FL
- PM-108-08L$81.90LOC 1.5″OAL 3″Ø 0.25″1 FL
- PM-112-12$102.75Ø 0.375″LOC 1.25″OAL 3″1 FL
- PM-116-16$160.55Ø 0.5″LOC 1.5″OAL 4″1 FL