BEYOND Micro Diameter Solid Carbide Drill Bit for Aluminum 2.5–3.0mm HRC55 | High Precision Drilling for Aluminum, Copper & Alloy carbide end milll
BEYOND HRC55 Micro Diameter Solid Carbide Drill Bit 1.5–2.45mm for Aluminum, Copper & Alloy – Fixed Shank Type carbide end milll
Micro Carbide Drill 0.9–1.45mm for Aluminum carbide end milll
HRC55 Micro Diameter Solid Carbide Drill Bit 0.7–0.89mm for Aluminum carbide end milll
Micro Solid Carbide Drill Bits 0.15-0.69mm for Aluminum carbide end milll
BEYOND Solid Carbide Micro Drill · Aluminum-Optimized · Nano Coated
Micro Carbide Drill for Aluminum — 0.15 to 3 mm
The BEYOND micro drill family dedicated to aluminum, copper, and aluminum alloy. Nano coating prevents built-up edge on soft non-ferrous metals. 3mm fixed shank for stable clamping. Optimized for CNC high-speed precision drilling at 10,000–25,000 RPM.
🟢 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.
Diameter Range
0.15 – 3 mm
Hardness Tier
HRC55
Shank
3 mm Fixed
Coating
Nano (Aluminum-Opt.)
BEYOND Micro Drill for Aluminum — 5 Diameter Tiers
All diameter tiers are dedicated to aluminum / copper / aluminum alloy with HRC55 substrate, 3mm fixed shank, and aluminum-optimized nano coating. Diameter tier determines runout tolerance and RPM profile.
| Diameter Tier | Shank | Typical Use | Price |
|---|---|---|---|
| 0.15–0.69 mm | 3mm fixed | Sub-1mm — micro PCB via on aluminum substrate | $35.64 |
| 0.7–0.89 mm | 3mm fixed | Micro instrument, jewelry, RC parts | $35.64 |
| 0.9–1.45 mm | 3mm fixed | Micro aluminum, copper, instrument, RC chassis | $35.64 |
| 1.5–2.45 mm | 3mm fixed | Micro deep hole — aluminum housing, RC components | $35.64 |
| 2.5–3.0 mm | 3mm fixed | Micro deep hole — aluminum, copper, alloy | $35.64 |
For steel / stainless / cast iron micro drilling, see the general micro drill family (without aluminum optimization).
Why Aluminum Needs Dedicated Drills
Aluminum, copper, and aluminum alloy are soft, gummy, non-ferrous metals — they present three challenges that steel drills cannot solve:
Built-Up Edge (BUE)
Aluminum welds to the cutting edge under heat & pressure, creating a BUE that ruins surface finish. Standard uncoated drills fail within 5–10 holes on aluminum.
Long Chips
Aluminum produces long, stringy chips that clog the flute on small-diameter drills. The aluminum-specific flute geometry breaks chips into short segments.
Heat Sensitivity
Aluminum conducts heat away from the cut, but the cutting edge still runs hot. Nano coating reduces friction and prevents edge softening.
The BEYOND micro drill for aluminum addresses all three with: nano Al-Ti-N coating (anti-BUE) + high-shear flute geometry (chip breaking) + HRC55 substrate (heat stability).
Nano Coating for Aluminum — Why It Matters
The nano-scale Al-Ti-N coating (~1–2 µm) is the single biggest performance differentiator for aluminum drilling. It creates a low-friction, anti-stick surface that prevents aluminum from welding to the cutting edge.
| Property | Nano Coated (this series) | Uncoated |
|---|---|---|
| BUE resistance | Excellent (no welding) | Fails after 5–10 holes |
| Surface finish | Mirror-grade (Ra 0.4–0.8 µm) | Rough (Ra 1.6+ µm) |
| Tool life | 2–3× uncoated | Baseline |
| Cutting speed | Up to 25,000 RPM (small Ø) | Limited (BUE at high Vc) |
3mm Fixed Shank — Holder Compatibility
All diameter tiers use a 3mm fixed straight shank — the standard for micro drilling on CNC. Compatible with:
- ER collet chuck (ER8 for Ø 0.15–1 mm, ER11 for Ø 1–3 mm) — see ER collet chucks
- Micro drill holder (precision-ground, runout < 0.003 mm)
- Hydraulic chuck for high-rigidity applications
⚠ Critical: Use only on CNC machining centers with high-frequency spindles (≥ 8,000 RPM). Do not use with hand drills, bench drills, or low-RPM drill presses — the drill will chip or break. For Ø ≤ 1 mm, runout must be < 0.005 mm.
Cutting Parameter Quick Guide — Aluminum-Optimized
Aluminum supports higher spindle speeds than steel. Use full CNC-rated RPM and apply cutting fluid (flood coolant or MQL).
| Aluminum Type | Diameter | Spindle RPM | Feed f (mm/rev) |
|---|---|---|---|
| Pure Aluminum (1100 / 1050) | 0.5–3 mm | 12,000–25,000 | 0.02–0.06 |
| Aluminum Alloy (6061 / 7075) | 0.5–3 mm | 10,000–20,000 | 0.015–0.05 |
| Cast Aluminum (A380 / A383) | 0.5–3 mm | 8,000–15,000 | 0.015–0.04 |
| Pure Copper (C110 / C122) | 0.5–3 mm | 10,000–18,000 | 0.01–0.04 |
| Copper Alloy (Brass / Bronze) | 0.5–3 mm | 10,000–20,000 | 0.015–0.05 |
For Individual Buyers & Small Workshops
You don't need to be a factory buyer. We ship 1 piece to your home, garage, or workshop — no MOQ, no pre-approval, no corporate paperwork. Perfect for RC / drone builds, watch / jewelry work, instrument prototyping, and small electronics.
💰 Volume Discounts (auto at checkout)
- 1 piece — list price ($35.64)
- 2–9 pieces — 6% OFF
- 10+ pieces — 12% OFF
📦 Shipping & Delivery
- Shipped from Hangzhou, China
- DHL / UPS / FedEx — 3–7 days to most countries
- Tracked & insured; signature on delivery
💬 Pre-Sale Technical Support
- WhatsApp reply within 2 hours (workdays)
- Email reply same business day
- Chinese & English supported
🎓 Perfect For
- RC / drone / FPV builds
- Watch / jewelry / instrument repair
- Garage CNC aluminum prototyping
- Small electronics & connector pin work
Not sure which diameter to pick? Send us your workpiece photo + material on WhatsApp — we'll recommend a size within 2 hours.
Solid Micro Aluminum vs Other Drill Families
For Ø ≤ 3 mm, solid carbide micro drills (this collection) are the only option. For larger aluminum work, switch to the indexable insert drill family. All eight siblings share the same /collections/drill parent hub.
SP Insert Drills — 55° positive trigon (stainless / aluminum / mild steel)
WC Insert Drills — 80° trigon negative rake (steel / cast iron / high MRR)
Application Spotlight
RC / Drone / FPV Builds
Carbon fiber-reinforced plastic and 6061 aluminum frames Ø 0.7–3 mm at 3–10 mm depth. HRC55 carbide handles thin-wall work without burr.
Watch / Jewelry / Instrument
Watch case / bracelet / jewelry work on aluminum, copper, brass Ø 0.15–2 mm. Nano coating prevents surface contamination.
Micro Aluminum Housing
Sensor housings, connector shells, instrument panels on 6061/7075 aluminum Ø 1–3 mm at 5–15 mm depth. Mirror-grade finish.
PCB Aluminum Substrate
Aluminum-substrate PCB (LED / power) drilling Ø 0.5–2 mm. Special flute design prevents chip re-welding.
Heat Sink Drilling
Micro heat sink mounting holes on aluminum Ø 0.5–2 mm. Pair with ER collet chucks for ±0.005 mm tolerance.
For Ø > 3 mm
For diameters above 3 mm, switch to the HRC60 3D / 5D / 8D carbide drill family.
Ordering Guide by Diameter Tier
| Diameter | Recommended Series | Notes |
|---|---|---|
| 0.15–0.69 mm | Micro Solid Carbide Drill Bits for Aluminum | Sub-1mm — PCB / electronics |
| 0.7–0.89 mm | HRC55 Micro Diameter for Aluminum | Watch / jewelry / instrument |
| 0.9–1.45 mm | Micro Carbide Drill for Aluminum | RC / drone / micro aluminum |
| 1.5–2.45 mm | BEYOND HRC55 Micro Diameter for Aluminum | Micro deep hole — aluminum housing |
| 2.5–3.0 mm | BEYOND Micro Diameter for Aluminum | Micro deep hole — aluminum, copper, alloy |
| > 3 mm | Switch to HRC60 3D / 5D / 8D | Carbide drill bits up to 20 mm |
| For steel / stainless / cast iron micro | Use general micro family | Same diameters, HRC55, but not aluminum-optimized |
Frequently Asked Questions
Why a dedicated drill for aluminum? Can I use a steel drill on aluminum?
Standard steel drills fail on aluminum due to built-up edge (BUE) — aluminum welds to the cutting edge under heat, ruining surface finish and accelerating wear. The BEYOND micro drill for aluminum uses a nano Al-Ti-N coating that creates a low-friction, anti-stick surface — preventing BUE for 2–3× longer tool life and mirror-grade surface finish.
What RPM and feed should I use for aluminum micro drilling?
Aluminum supports high RPM (10,000–25,000) and moderate feed (0.01–0.06 mm/rev). Smaller diameters run higher RPM. Use flood coolant (preferred) or MQL. Runout must be < 0.005 mm at the drill point. See the Cutting Parameter table above for material-specific recommendations.
Can I use this drill on cast aluminum (A380 / A383)?
Yes — but reduce Vc by 30% vs wrought aluminum. Cast aluminum has silicon content that causes abrasive wear. Use 8,000–15,000 RPM and 0.015–0.04 mm/rev feed. Flood coolant is mandatory. Inspect the cutting edge every 50 holes for wear.
📦 Do you ship to my country? How fast?
Yes — we ship globally from Hangzhou, China via DHL / UPS / FedEx. Standard transit is 3–7 business days to most countries in North America, Europe, Asia-Pacific, and the Middle East. Shipping cost is calculated at checkout based on weight and destination; tracking number is emailed within 24 hours of dispatch.
🛒 Can I order just 1 piece? Is there a minimum order?
Yes — no MOQ. Order 1 piece at $35.64 list price, 2–9 pieces at 6% OFF (auto-discount at checkout), 10+ pieces at 12% OFF. Whether you're building one drone frame, one watch prototype, or one-off instrument repair, you're welcome.
↩️ What's your return / refund policy?
Unopened, unused stock can be returned within 7 days of delivery for a full refund (buyer pays return shipping). Defective or wrong items are replaced at our cost. WhatsApp us with your order number and a photo — we respond within 2 hours on workdays.
Need a Custom Aluminum Drill Spec or Bulk Quote?
BEYOND engineers respond same-day for aluminum drill specs, custom diameters, and bulk pricing for 10+ pieces (12% off). Reach our team on WhatsApp or email — we ship from Hangzhou via DHL / UPS / FedEx with 3–7 day transit to most countries.
💬 Chat on WhatsApp · +86 15990663752 Email · chao@cnchome-beyond.com
Related guides: CNMG 120408-PM 8-Brand Grade Matrix · Custom CNC Speeds & Feeds Chart · Small-Hole Boring Tips