MXF-802-20-020
8 Flute Standard Length High Performance Metric Carbide End Mill
20mm Dia 8-Flute Metric End Mill 38mm LOC, 20mm Shank, 104mm OAL, 2mm CR with Weldon Flats


6 and 8 flute, 45° helix Tuffy grade finishers for titanium, steels, and high-temp alloys — cut titanium up to 75 inches per minute.
- 6 flute (XF-602, 3/8"–3/4") and 8 flute (XF-802, 3/4"–1") Tuffy grade carbide with 45° helix, AlTiN coated
- Metric MXF line: MXF-602 in 10–16 mm and MXF-802 in 20–25 mm
- Corner radius on every tool — .030", .060", .090", .120" by size (metric 2.0, 2.5, 3.0 mm); no sharp-corner version
- Headline claim from the guide: cut titanium up to 75 inches/minute (1905 mm/minute)
- Materials: titanium, cast iron, steel, stainless steel, and super alloys up to 40 HRc hardness
- A dedicated side-milling finisher — applications are side milling, high-performance semi-finishing, and finishing (no slotting rating), run dry, wet, cold air, or spray mist
- XF finish profiling guidance: about .1 × diameter radial width at 1 × diameter axial depth; see the guide's trochoidal tool paths at robbjack.com/robbjack-tv
- Optional flats (-FL) on every inch size for high-torque holding; metric tools do not have flats
- Anti-pull-out h4 shank tolerance — tightest in the industry
- Tolerances: cutting dia −.001/−.002, shank −.0001/−.0002, flute length +.060/−.000 (MXF: cutting dia −.025/−.050 mm)
From the RobbJack Applications Guide.

About this series
MXF Metric Tuffy Grade Carbide End Mills
Metric high-flute-count finishing tools for steel & difficult alloys
MXF is the metric variant of the XF Series: 6-flute (MXF-602) and 8-flute (MXF-802) Tuffy Grade carbide end mills with 45 degree helix, AlTiN coated, 10-25 mm sizes. Metric tools do not have flats.
- 6 flute (MXF-602) and 8 flute (MXF-802) configurations
- 45 degree helix, square end with corner radius
- AlTiN coated
- Metric sizes 10 mm to 25 mm
- Metric tools do not have flats
Titanium, cast iron, steel, stainless steel and super alloys up to 40 HRc. Side milling, semi-finishing and finishing.
Headline spec
Metric 6/8-flute 45-degree-helix Tuffy Grade carbide, AlTiN coated
Best for
- Metric high-speed finishing
- Steel, stainless and difficult alloys
- Titanium
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 20 mm
- Diameter ToleranceDC tol
- -0.001/-0.002
- Shank DiameterDMM
- 20 mm
- Length of Cut (LOC)APMX
- 38 mm
- Overall Length (OAL)OAL
- 104 mm
- Corner RadiusRE
- 2 mm
- Number of FlutesNOF
- 8
- Helix AngleFHA
- 45°
- Helix HandFHH
- Right-hand
- Cut Direction
- Right-hand cut
- End Type
- Corner Radius
- Center Cutting
- Yes — plunges
- Series
- MXF-802 — 8 Flute Standard Length High Performance Metric Carbide End Mill
Cuts these materials
Applications
See it run · 2 videos
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | -0.001 | -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 Aluminum Titanium Nitride (AlTiN) · $463.70 — 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)
MXF-802-20-020
$463.70
Available to order
MXF-802-20-020-FL
$463.70
Available to order
Starting at
$463.70
Performance guaranteed
More in the MXF-802 series
Same series, different size — what changes from this tool is shown in red.
- MXF-802-20-025$463.70CR 2.5 mmØ 20 mm8 FLLOC 38 mm
- MXF-802-20-030$463.70CR 3 mmØ 20 mm8 FLLOC 38 mm
- MXF-802-25-020$641.70Ø 25 mm8 FLLOC 38 mmCR 2 mm
- MXF-802-25-025$641.70Ø 25 mmCR 2.5 mm8 FLLOC 38 mm
- MXF-802-25-030$641.70Ø 25 mmCR 3 mm8 FLLOC 38 mm
- MXF-602-10-020$145.20Ø 10 mm6 FLLOC 20 mmOAL 72 mm
- MXF-602-10-025$145.20Ø 10 mm6 FLLOC 20 mmCR 2.5 mm
- MXF-602-10-030$145.20Ø 10 mm6 FLLOC 20 mmCR 3 mm
- MXF-602-12-020$211.20Ø 12 mm6 FLLOC 25 mmOAL 83 mm
- MXF-602-12-025$211.20Ø 12 mm6 FLLOC 25 mmCR 2.5 mm
- MXF-602-12-030$211.20Ø 12 mm6 FLLOC 25 mmCR 3 mm
- MXF-602-16-020$386.45Ø 16 mm6 FLLOC 32 mmOAL 92 mm