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7mm Aluminum T-Slot Milling Cutter carbide end milll
$94.02 USD
7mm Aluminum T-Slot Milling Cutter | BEYOND HRC55° Carbide CNC End Mill The BEYOND 7mm Aluminum T-Slot Milling Cutter is designed for precision machining of aluminum alloys, copper, stainless steel,...
20mm Aluminum T-Slot Milling Cutter carbide end milll
$543.78 USD
BEYOND 20mm Aluminum T-Slot Milling Cutter Product Overview The BEYOND 20mm T-Slot Milling Cutter is designed for precision aluminum slot milling. Built for CNC machines, it provides superior cutting performance,...
16mm Aluminum T-Slot Milling Cutter carbide end milll
$346.41 USD
BEYOND 16mm Aluminum T-Slot Milling Cutter Product Overview The BEYOND 16mm T-Slot Milling Cutter is engineered for precise and efficient aluminum slot milling. Designed for CNC machines, it guarantees superior...
14mm Aluminum T-Slot Milling Cutter carbide end milll
$271.71 USD
BEYOND 14mm Aluminum T-Slot Milling Cutter Product Overview The BEYOND 14mm T-Slot Milling Cutter is engineered for precise and efficient aluminum slot milling. Designed for CNC machines, it guarantees superior...
12mm Aluminum T-Slot Milling Cutter carbide end milll
$182.34 USD
BEYOND 12mm Aluminum T-Slot Milling Cutter Product Overview The BEYOND 12mm T-Slot Milling Cutter is specifically designed for high-efficiency aluminum machining. Crafted for CNC milling applications, it ensures precise slot...
11mm T-Slot Milling Cutter for Aluminum carbide end milll
$162.72 USD
BEYOND 11mm T-Slot Milling Cutter for Aluminum Brand: BEYOND Model: T-Slot Cutter d1 = 11mm Application: Aluminum, Copper, Non-Ferrous Metals Product Overview The BEYOND 11mm T-Slot Milling Cutter for Aluminum...
10mm T-Slot Milling Cutter for Aluminum carbide end milll
$143.52 USD
BEYOND 10mm T-Slot Milling Cutter for Aluminum Brand: BEYOND Model: T-Slot Cutter d1 = 10mm Application: Aluminum, Copper, Non-Ferrous Metals Product Overview The BEYOND 10mm T-Slot Milling Cutter for Aluminum...
9mm T-Slot Milling Cutter for Aluminum carbide end milll
$127.65 USD
BEYOND 9mm T-Slot Milling Cutter for Aluminum Brand: BEYOND Model: T-Slot Cutter d1 = 9mm Application: Aluminum Alloy, Non-ferrous Metals Product Overview The BEYOND 9mm T-Slot Milling Cutter for Aluminum...
8mm T-Slot Milling Cutter for Aluminum carbide end milll
$103.89 USD
BEYOND 8mm T-Slot Milling Cutter for Aluminum Brand: BEYOND Model: T-Slot Cutter d1 = 8mm Application: Aluminum Alloy, Non-ferrous Metals Product Overview The BEYOND 8mm T-Slot Milling Cutter for Aluminum...
6mm Aluminum T-Slot Milling Cutter carbide end milll
$73.17 USD
6mm Aluminum T-Slot Milling Cutter | BEYOND 55° HRC Carbide CNC End Mill The BEYOND 6mm Aluminum T-Slot Milling Cutter is a precision-engineered carbide tool designed for slotting, contouring, and...
5mm Aluminum T-Slot Milling Cutter carbide end milll
$69.21 USD
5mm Aluminum T-Slot Milling Cutter | BEYOND 55° HRC CNC Slot End Mill The BEYOND 5mm Aluminum T-Slot Milling Cutter is engineered for precision slotting, pocketing, and contouring operations on...
4mm Aluminum T-Slot Milling Cutter carbide end milll
$63.75 USD
4mm Aluminum T-Slot Milling Cutter | BEYOND 55° HRC CNC Slot End Mill The BEYOND 4mm Aluminum T-Slot Milling Cutter is specially designed for precise slotting and contour machining in...
3mm Aluminum T-Slot Milling Cutter carbide end milll
$58.83 USD
3mm Aluminum T-Slot Milling Cutter | XET 55° Type T-Slot End Mill The 3mm Aluminum T-Slot Milling Cutter is designed for precision machining of aluminum alloy, stainless steel, and cast...
2mm Aluminum T-Slot Milling Cutter carbide end milll
$53.88 USD
2mm Aluminum T-Slot Milling Cutter The 2mm Aluminum T-Slot Milling Cutter is a high-precision carbide slotting tool designed for machining aluminum alloys and non-ferrous materials. With a 55° cutting angle...
Quick Links — Aluminum T-Slot Milling Cutters
Aluminum T-Slot Milling Cutter (2-20mm · 55° Helix · Mirror-Polished)
BEYOND brand solid-carbide T-slot milling cutters engineered specifically for aluminum and non-ferrous alloys. 13 standard diameters from 2 mm to 20 mm, each available in 5 tooth-length variants. Fine-grain carbide with mirror-polished flutes eliminates built-up edge on aluminum, and a 55° helix angle gives aggressive chip evacuation at high Vc.
Diameter (D1)
2 - 20 mm
0.1 mm pitch, metric standard
Helix Angle
55° Aluminum-Grade
High chip evacuation
Tooth Length Variants
×1 / ×1.5 / ×2 / ×2.5 / ×3
5 depth ratios per SKU
Surface Finish
Mirror-Polished
No coating — prevents BUE
Trusted by small workshops, individual machinists & garage CNC users worldwide
1 piece welcome · WhatsApp reply within 2 hours · 3-7 day global shipping via DHL / UPS / FedEx
1 piece welcome · WhatsApp reply within 2 hours · 3-7 day global shipping via DHL / UPS / FedEx
Why Aluminum Needs Different Geometry
The Built-Up Edge Problem
Aluminum is soft, gummy, and chemically reactive. A standard TiAlN-coated steel-grade cutter running at steel Vc welds aluminum to the cutting edge within seconds — this is called built-up edge (BUE). BUE ruins surface finish, causes sudden cutter breakage, and leaves aluminum residue in the T-slot sidewall. Solving BUE requires 3 coordinated design changes: mirror-polished flutes, a steeper helix angle, and removing the coating.
Our aluminum-grade T-slot cutters solve the built-up edge problem through three coordinated design choices that steel-grade cutters do not have:
- Mirror-polished flute surface — reduces aluminum adhesion by 60-80% compared to standard ground flutes. Chips slide off instead of welding to the cutting edge.
- 55° helix angle (vs 30-45° for steel-grade) — lifts chips out of the T-slot faster, preventing recutting that compounds BUE.
- No coating (uncoated polished carbide) — TiAlN / TiN coatings chemically react with aluminum at high Vc, accelerating BUE. Aluminum wants no coating + polished surface.
For steel-grade T-slot cutters (TiAlN-coated, 30-45° helix), see our steel-grade T-slot cutter collection. Same diameter range, same tooth-length variants — but built for steel, stainless steel, and cast iron.
Why Choose Our Aluminum T-Slot Cutters
Mirror-Polished Flutes
Hand-polished after grinding to a sub-micron finish. Aluminum slides off instead of welding to the cutting edge — eliminates built-up edge.
55° High Helix
Steep 55° helix angle lifts chips out of the slot fast. Prevents re-cutting, recuts that compound BUE on aluminum and copper.
5 Tooth Lengths per SKU
Every diameter ships in ×1 / ×1.5 / ×2 / ×2.5 / ×3 tooth-length variants — match slot depth without buying separate cutters.
HRC ≤ 55° Optimized
Substrate hardness graded for non-ferrous cutting. Holds sharp edge through full T-slot profile pass without micro-chipping.
T-Slot Profile Standards (DIN 850)
T-slot profile geometry on these cutters matches DIN 850 / ISO 3337 standard — the same profile as our steel-grade T-slot cutter collection. The cutter diameter (D1) equals the T-slot nominal width, so a 10 mm cutter produces a T10 slot profile. Sidewall angle and bottom relief follow standard machine-tool table dimensions.
| T-Slot Nominal (a × b) | Cutter D1 (mm) | Bolt Size | Typical Aluminum Workpiece |
|---|---|---|---|
| T8 (8 × 15) | 8 | M6 | Small aluminum fixtures, gauge blocks |
| T10 (10 × 18) | 10 | M8 | Standard aluminum machine tables |
| T12 (12 × 22) | 12 | M10 | Medium-duty aluminum beds |
| T14 (14 × 25) | 14 | M12 | Aluminum fixture plates |
| T16 (16 × 28) | 16 | M14 | Large aluminum machine tables |
| T18 (18 × 32) | 18* | M16 | Heavy-duty aluminum fixturing |
| T20 (20 × 36) | 20 | M18 | Industrial aluminum machine beds |
* 18 mm available on request — our stocked range is 2-20 mm. Larger T-slot profiles (T22-T36) quoted on request for production orders.
Aluminum Grades Machined
The mirror-polished, uncoated geometry handles the full range of aluminum alloys plus common non-ferrous materials. Pick your alloy below for the right starting Vc — all values assume sharp cutter, rigid setup, and MQL or flood coolant.
| Material | Common Forms | Vc Start (m/min) | Chip Behavior |
|---|---|---|---|
| 6061-T6 | Structural plates, fixtures, machine frames | 180 - 280 | Long stringy chips, easy evacuation |
| 7075-T6 | Aerospace jigs, high-strength brackets | 150 - 240 | Slightly gummy, prefers higher Vc |
| 2024-T3 | Aerospace structural, truck frames | 160 - 250 | Tendency to BUE — keep Vc high |
| Cast Aluminum (A356 / A380) | Engine housings, manifolds | 120 - 200 | Abrasive silica content — watch wear |
| Copper (C110 / C360) | Busbars, electrical contacts | 100 - 180 | Very gummy — sharp cutter mandatory |
| Brass (C360 / C464) | Fittings, marine hardware | 150 - 250 | Clean chip break, minimal BUE |
Size Selection Guide (2-20mm)
All standard sizes ship within 24 hours from our Hangzhou warehouse. Pick by cutter diameter (D1) — that value equals the T-slot nominal width your slot must match. View any individual size below:
| Cutter D1 | Typical T-Slot | Common Aluminum Workpiece | View |
|---|---|---|---|
| 2 mm | Specialty / micro-fixturing | Aluminum jewellery fixtures, watch tooling | 2mm version |
| 3 mm | Micro fixture slots | Aluminum small clamps, precision tooling | 3mm version |
| 4 mm | Light fixturing | Aluminum electronics fixtures, PCB tooling | 4mm version |
| 5 mm | Compact clamping | Small aluminum lathe / mill tables | 5mm version |
| 6 mm | Light-duty clamping | Tabletop aluminum mills, hobby tables | 6mm version |
| 7 mm | Mid-light clamping | Aluminum small fixture plates | 7mm version |
| 8 mm | T8 standard | Aluminum mill tables, small fixtures | 8mm version |
| 9 mm | Mid clamping | Aluminum general fixturing | 9mm version |
| 10 mm | T10 standard | Standard aluminum milling-machine tables | 10mm version |
| 11 mm | Mid-heavy clamping | Aluminum heavy fixture plates | 11mm version |
| 12 mm | T12 standard | Medium-duty aluminum machine beds | 12mm version |
| 14 mm | T14 standard | Aluminum clamping rails, fixture plates | 14mm version |
| 16 mm | T16 standard | Large aluminum machine-tool tables | 16mm version |
| 20 mm | T20 standard | Industrial aluminum machine beds | 20mm version |
5 Tooth Length Variants per Diameter
Every diameter ships in 5 tooth-length variants — measured as the cutter's cutting-depth ratio relative to D1. Pick the variant that gives at least 1 mm of cutter clearance past the bottom of your T-slot. All 5 variants are priced the same per SKU.
| Variant | Cutting Depth | Use When |
|---|---|---|
| ×1 | 1.0 × D1 | Standard T-slot — matches most aluminum fixture depths. |
| ×1.5 | 1.5 × D1 | Deeper T-slots where standard ×1 is too shallow. |
| ×2 | 2.0 × D1 | Deep aluminum slots, extended fixture channels. |
| ×2.5 | 2.5 × D1 | Heavy-duty aluminum slotting, large fixture plates. |
| ×3 | 3.0 × D1 | Maximum depth for oversized T-slot profiles. |
Recommended Cutting Parameters for Aluminum
Starting parameters for aluminum-grade T-slot cutters. Aluminum wants higher Vc and higher fz than steel — running too slow causes BUE. Use MQL or flood coolant for any cut deeper than 1 × D1.
| Aluminum Grade | Vc (m/min) | fz per tooth (mm) | ap (pass depth) | Coolant |
|---|---|---|---|---|
| 6061-T6 | 180 - 280 | 0.06 - 0.12 | 1.0 × D1 | MQL or flood |
| 7075-T6 | 150 - 240 | 0.05 - 0.10 | 1.0 × D1 | MQL or flood |
| 2024-T3 | 160 - 250 | 0.05 - 0.10 | 0.8 × D1 | MQL or flood |
| Cast Aluminum (A356) | 120 - 200 | 0.04 - 0.08 | 0.6 × D1 | Flood |
| Copper (C110) | 100 - 180 | 0.04 - 0.08 | 0.5 × D1 | Flood (mandatory) |
| Brass (C360) | 150 - 250 | 0.06 - 0.12 | 1.0 × D1 | MQL or dry |
For drilling companion cutters in aluminum, browse carbide drill bits or 12D extra-long carbide drill bits. For steel-grade T-slot geometry (TiAlN coated), see the steel-grade T-slot cutter collection.
For Individual Buyers & Small Workshops
Single-piece orders welcome — no MOQ, no bulk-buy requirement. We ship to home addresses, garage workshops, and small machine shops in 50+ countries. Every order ships from our Hangzhou warehouse with DHL / UPS / FedEx tracking provided.
Volume Discount
2-9 pieces: 6% OFF · 10+ pieces: 12% OFF · Mix-and-match across all diameters in one cart.
3-7 Day Global Shipping
DHL / UPS / FedEx express to 50+ countries · Tracked door-to-door · Most orders ship within 24 hours from order.
WhatsApp Quote in 2 min
Send your D1 + tooth length + aluminum grade · Real human reply within 2 hours (UTC+8 working hours) · No chatbot, no call-center queue.
Built for Small-Shop Buyers
Hobby machinists · Garage CNC users · Aluminum fixture shops · RC / drone builders · Trade-school students.
Aluminum T-Slot vs Steel-Grade T-Slot
Same DIN 850 profile geometry, but the cutter design diverges sharply based on workpiece material. Choosing the wrong grade for your workpiece leads to BUE (aluminum) or rapid edge wear (steel). Quick comparison:
| Design Element | Aluminum-Grade (this collection) | Steel-Grade |
|---|---|---|
| Coating | None (uncoated polished) | TiAlN |
| Helix angle | 55° (steep) | 30-45° (standard) |
| Flute surface | Mirror-polished | Standard ground |
| Vc range | 100-300 m/min | 40-120 m/min |
| fz per tooth | 0.05-0.15 mm | 0.02-0.08 mm |
| ap (pass depth) | 1.0 × D1 (aggressive) | 0.3-0.5 × D1 (conservative) |
| Coolant | MQL or flood | Flood (mandatory for stainless) |
| Workpiece | Aluminum, copper, brass, non-ferrous | Steel, stainless, alloy steel, cast iron |
| SKU link | (this page) | Steel-grade T-slot cutter collection |
Browse corn-milling cutters for profile work, face-milling cutter series for surface facing, or chamfering cutters for edge-breaking after T-slot cutting.
Related BEYOND Cutters
Steel-Grade T-Slot Cutters
TiAlN-coated, 30-45° helix. For steel, stainless, cast iron.
Best Sellers
Top-rated cutters across the BEYOND range.
All BEYOND Products
Browse the full BEYOND brand catalogue.
Chamfering Cutters
45° / 60° edge-breaking after slot cutting.
Corn-Milling Cutters
Profile sidewall milling for T-slot side finish.
Face-Milling Cutters
Surface facing before T-slot profiling.
12D Extra-Long Drills
Deep-hole drilling companion to T-slot work.
Carbide Drill Bits
All carbide drill bits for aluminum fixture prep.
HRC60 5D Carbide Drill
Hardened-steel drilling for aluminum fixture plates.
HRC65 8D Carbide Drill
Internal coolant for hardened-steel deep holes.
A/B Type Center Drills
DIN 333 center drilling before T-slot bolt holes.
3D Carbide Drill Bits
3×D standard-length carbide drill for fixture work.
Holder Accessories
Wrenches, screws, and clamping elements.
CNC Knowledge Base
Buyer guides, grade comparisons, cutting charts.
Frequently Asked Questions
Why are these cutters uncoated and mirror-polished instead of TiAlN-coated like steel-grade versions?
Aluminum is chemically reactive with most tool coatings at high Vc. TiAlN-coated cutters running on aluminum at 200+ m/min weld aluminum to the cutting edge within seconds — this is built-up edge (BUE), and it ruins surface finish + causes sudden cutter breakage. The fix is uncoated polished carbide: mirror polishing reduces aluminum adhesion by 60-80% vs ground flutes, and removing the coating eliminates the chemical reaction entirely. Steel-grade cutters have TiAlN because steel wants the coating (heat resistance + hardness at 80-120 m/min).
Why a 55° helix angle instead of 30-45° for steel?
Aluminum chips are long, stringy, and gummy. A standard 30-45° helix leaves chips in the T-slot, where they get re-cut by the next tooth — each re-cut welds more aluminum to the edge (compounding BUE). The steep 55° helix lifts chips out of the slot rapidly, preventing re-cutting. The trade-off is slightly less rigid cutting — acceptable on aluminum (soft material), unacceptable on steel (where chip evacuation is less critical and rigidity matters more).
Should I use coolant, or can I run dry on aluminum?
MQL (Minimum Quantity Lubrication) is the sweet spot for aluminum T-slot cutting — it prevents BUE without washing away the cutting zone's thermal balance. Flood coolant works too but can cause thermal shock on thin aluminum sections. Dry cutting is possible for short passes on rigid setups, but extended cuts without any lubrication will eventually build up edge. For deep ×2 / ×2.5 / ×3 tooth-length variants, MQL is mandatory.
📦 Shipping cost & delivery time for individual buyers?
We ship to 50+ countries via DHL / UPS / FedEx. Most orders deliver in 3-7 business days. Shipping cost is calculated at checkout based on destination — typically $15-$35 for a single T-slot cutter to North America / Europe / Asia-Pacific. Tracking link is emailed within 24 hours of dispatch. We also ship to home addresses (not just commercial).
🛒 Can I order just 1 piece to try?
Yes — 1 piece welcome. No MOQ, no bulk-buy requirement. Single-piece orders get the same DHL/UPS/FedEx tracked shipping as bulk orders. Volume discount is automatic in cart: 2-9 pieces 6% OFF, 10+ pieces 12% OFF — but you never have to hit those tiers to place an order.
⇆ Returns & warranty?
30-day return window for unused product in original packaging. If a cutter arrives damaged or defective, we ship a replacement free of charge (you keep the original). For production-line failures (edge chipping under normal use within the first 10 cuts), send a photo to chao@cnchome-beyond.com or WhatsApp +86 15990663752 and we’ll troubleshoot or replace.
Technical questions: chao@cnchome-beyond.com · WhatsApp: +86 15990663752 · Browse all BEYOND brand products: BEYOND collection