FMHV-301-32-090
3 Flute Short Reach High Velocity Solid Carbide End Mill for Aluminum
RobbJack high-velocity end mill — the flagship for long, chatter-free aluminum cutting, necked for reach, on both standard and the highest-performance machining centers made today. 1-in Dia 3-Flute End Mill, 1.25-in LOC, 1-in Shank, 4-in OAL, 0.09 CR
OrderingFMHV-301-32-090·Uncoated·$964.55Change finish
Ultra-high-velocity 2 and 3 flute aluminum end mills with reach and radii for high-horsepower spindles — the guide warns these tools 'can max out all machines made today.'
- 2 flute (FMHV-201–205) and 3 flute (FMHV-301–305), 37° helix, with Feather Blend, necked reach, Mirror Edge, and thru-coolant holes
- Built for ultra-high velocity: guide speeds & feeds are based on 175-horsepower / 130-kilowatt machines with short stickout — 'these tools can max out all machines made today. Adjust speeds and feeds to the machine and application… Be careful!'
- Run at Max Tap Tested RPM (or Max RPM) with chip loads from .002–.004 (1/4") up to .008–.015 (1") per tooth, at depths from .100" up to .900" — slot or profile, but stay away from 50% radial step-over
- Four reach lengths per diameter, short to extra-long (e.g. 1/4": 3/4", 1-1/16", 1-1/2"… on 2"–3" OALs); other reach lengths available upon request
- Inch sizes 1/4"–1"; metric MFMHV line runs 6–25 mm with 2 and 3 cutting-edge versions in the same tables
- Corner options: square end, radii of .03", .06", .09" (metric 0.5/1/2 mm), and ball end (-BN)
- Every geometry in four builds: uncoated, DLC, thru-coolant (-TC), and thru-coolant DLC
- The 3-flute FMHV features the guide's ALL-NEW balanced end design — marked 'CANNOT PLUNGE', so enter with helical interpolation or ramping
- Applications: slotting, side milling, helical interpolation, ramping, high-performance 3-D (2-flute), roughing, semi-finishing, finishing — wet; materials: aluminum, copper, magnesium, brass
- h4 shank tolerance, up to 150% more gripping force — tightest in the industry; tolerances: cutting dia −.001/−.0015, shank −.0001/−.0002, flute length +.060/−.000
From the RobbJack Applications Guide.
About this series
FMHV / MFMHV High-Velocity Aluminum End Mills
The flagship for long, chatter-free aluminum cutting.
High-velocity, necked-reach end mills engineered for aggressive aluminum machining — from standard machining centers to the highest-horsepower, highest-rpm spindles made today. Patented Mirror-edge geometry clears chips fast and runs clean at long reach.
Headline spec
Peak MRR up to 604 in³/min (1" 3-flute, thru-coolant + DLC)
Best for
- High-speed aluminum roughing & finishing
- Aerospace structures
- Long-reach pockets
Specifications
US machining terms with ISO 13399 codes.
- Cutting DiameterDC
- 1″
- Diameter ToleranceDC tol
- -0.0007/-0.0009
- Shank DiameterDMM
- 1″
- Length of Cut (LOC)APMX
- 1.25″
- Reach (LBS)SDL
- 2.125″
- Neck DiameterND
- 0.95″
- Overall Length (OAL)OAL
- 4″
- Corner RadiusRE
- 0.09″
- Number of FlutesNOF
- 3
- Helix AngleFHA
- 37°
- Blend Angle (neck→shank)
- 15°
- Feather Blend
- 10°
- End Type
- Corner Radius
- Center Cutting
- No — cannot plunge
- Series
- FMHV-301 — 3 Flute Short Reach High Velocity Solid Carbide End Mill for Aluminum
Cuts these materials
Applications
Features
Tolerances
| Type | Min | Max |
|---|---|---|
| Cutting Diameter | -0.001 | -0.0015 |
| Length of Cut | +0.06 | 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 FMHV-301-32-090 · price at the 3-piece minimum
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.
Minimum order quantity: 3
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)
Volume pricing
| Qty | Uncoated | DLC |
|---|---|---|
| 3+ | $964.55 | $1015.70 |
| 6+ | $715.75 | $766.90 |
| 12+ | $677.55 | $728.70 |
| 24+ | $652.50 | $703.65 |
| 48+ | $638.20 | $689.35 |
Uncoated: FMHV-301-32-090
DLC: FMHV-301-32-090-DLC
List price per piece at the ordered quantity — the cart and checkout both bill these tiers.
Uncoated
$964.55
FMHV-301-32-090
Starting speeds & feeds for the FMHV-301-32-090
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) |
|---|---|---|---|---|---|---|---|
| 6061(T4-T6) Aluminum | Roughing — full slot | 3,144 | 12,000 | 400 | .01111 | .2400 | 1.0000 |
| 6061(T4-T6) Aluminum | Finishing | 3,144 | 12,000 | 201.6 | .00560 | .4000 | .2000 |
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 FMHV-301 series
Same series, different size — what changes from this tool is shown in red.
- FMHV-301-08$197.65Ø 0.25″LOC 0.375″reach 0.75″OAL 2″
- FMHV-301-08-030$199.55Ø 0.25″LOC 0.375″CR 0.03″reach 0.75″
- FMHV-301-08-030-CB$225.35Ø 0.25″LOC 0.375″CR 0.03″reach 0.75″
- FMHV-301-08-030-TC$252.80Ø 0.25″LOC 0.375″CR 0.03″reach 0.75″
- FMHV-301-08-030-TC-CB$277.30Ø 0.25″LOC 0.375″CR 0.03″reach 0.75″
- FMHV-301-08-060$199.55Ø 0.25″LOC 0.375″CR 0.06″reach 0.75″
- FMHV-301-08-060-CB$225.35Ø 0.25″LOC 0.375″CR 0.06″reach 0.75″
- FMHV-301-08-060-TC$252.80Ø 0.25″LOC 0.375″CR 0.06″reach 0.75″
- FMHV-301-08-060-TC-CB$277.30Ø 0.25″LOC 0.375″CR 0.06″reach 0.75″
- FMHV-301-08-090$201.40Ø 0.25″LOC 0.375″reach 0.75″OAL 2″
- FMHV-301-08-090-CB$227.15Ø 0.25″LOC 0.375″reach 0.75″OAL 2″
- FMHV-301-08-090-TC$254.90Ø 0.25″LOC 0.375″reach 0.75″OAL 2″