Frequently asked questions
What RPM should I pick for the salon's daily mix?
Match RPM to the dominant service and always run the lowest range that does the job. Cuticle prep and light filing: 4,000 to 7,000 RPM, any drill works. Gel polish removal and shape work: 8,000 to 15,000 RPM. Acrylic shaping: 15,000 to 25,000 RPM, where the Medicool Pro Power 20k gives finer control. Heavy acrylic and dip removal: 25,000 to 35,000 RPM, the range of the LAVIS Nail Drill, Medicool Pro Power 35k, and KUPA Passport.
KUPA vs LAVIS vs Medicool, which one?
KUPA Passport is the premium portable choice: Japanese coreless motor, 8 to 10 hour battery, 110/220V dual voltage, 1-year warranty. Medicool Pro Power 35k is the salon high-RPM workhorse. LAVIS Nail Drill is the brushless mid-tier option with Smart Safety Overload Protection, HD display, and 7 color options. New and mid-volume salons typically start with LAVIS; high-volume salons run KUPA Passport as the primary unit with Medicool as backup.
Does the drill come with bits?
Some bundles include a starter bit set, but most drill SKUs ship the handpiece and control box only. KUPA, LAVIS, and Medicool handpieces all take the industry-standard 3/32 inch shank, so bits move between brands. The matching bits sell separately across the Prep, Refine, Removal, and Sanding sub-collections at ND, 134 SKUs total. Stock 8 to 15 bits per technician station.
How long should a salon-grade nail drill last?
With daily disinfection, weekly chuck cleaning, and monthly cord and battery inspection, KUPA Passport and Medicool Pro Power handpieces last 36 or more months on salon duty cycles. The LAVIS brushless handpiece is maintenance-free and rated for similar life. Budget cordless drills at ship with a 30-day warranty and typically fatigue at 12 to 18 months of daily salon use. Ship a handpiece for service once RPM drops below 80 percent of spec.
What is the wholesale price?
Nail drills at ND ship at the standard wholesale tier with no business license, no minimum order, and no membership fee. KUPA, Medicool, and Kiara Sky hold their pricing because they ship with a 1-year manufacturer warranty; the LAVIS Nail Drill is the mid-tier brushless option and the generic cordless drills the value tier. Orders of $100 or more ship free, and in-stock drills ordered before 2pm PT on weekdays leave the same day.
Why salons stock professional nail drills
An electric nail file (e-file, nail drill) is the salon's daily-use hardware for prep, gel removal, fill work, sculpt shaping, and dust-free cuticle work. ND Nails Supply carries 77 nail drill SKUs across the three professional brands that dominate US nail salon use: KUPA MANIPro Passport (premium portable), Medicool Pro Power (premium corded plus rechargeable), and LAVIS Nail Drill (mid-premium brushless), plus the Kiara Sky Portable line and budget cordless options for new salons or DIY pros.
The drill is one of two pieces of hardware (the other is the UV/LED lamp) that the salon technician touches every service hour. Picking the wrong drill costs the salon in three ways: motor fatigue under daily use, vibration that causes technician wrist strain over 6 to 12 months, and underpowered RPM that slows acrylic and dip removal. The right drill for a high-volume salon and the right drill for a beginner home-tech are different SKUs in different price tiers. The sections below show the specs spine that separates the tiers.
The nail drill catalog at ND
The 77 SKUs fall into four brand-family clusters at four price tiers:
KUPA MANIPro Passport (premium portable)
The KUPA Passport with KP-55 or KP-65 handpiece is the most-stocked premium e-file at US salons. The KP-65 handpiece (the lightest at 4.23 oz, 4.25 inches long, 0.8 inch body diameter) is manufactured from stainless steel with a Japanese-made coreless motor. Specs: 30,000 RPM control box, 25,000 RPM handpiece, 8 to 10 hours battery, 110/220V auto-switching dual-voltage, 2-hour quick charge, Acetone Resistant Finish, 1-year manufacturer warranty.
Medicool Pro Power Rechargeable and Pro Power Elite (premium)
The Medicool Pro Power line ships in two RPM tiers: Pro Power 20k (20,000 RPM) and Pro Power 35k (35,000 RPM). Rechargeable design with 1-year manufacturer warranty. The 35k variant is the salon high-RPM workhorse for acrylic and dip removal where speed matters; the 20k variant fits salons that primarily do gel work where lower RPM gives finer cuticle control.
LAVIS Nail Drill brushless (mid tier)
The LAVIS Nail Drill is the brushless mid-premium tier. Specs: 35,000 RPM high-torque brushless motor, 8 to 10 hours battery, 3-hour full charge, 110/220V auto-switching, HD display for speed + battery, Smart Play/Pause control, variable speed, Forward/Reverse, Smart Safety Overload Protection, Acetone Resistant Finish, aluminum alloy body with UV surface treatment. 7 color options: White, Black, Red, Rose Gold, Silver Mermaid, Gold, Blue.
Kiara Sky Portable, LDS Nail Drill, and the budget cordless drills
Kiara Sky Portable sits in the premium tier (Blue, Pink, Purple). The LDS Nail Drill (Gold, Pink, and more) is the house-brand mid-tier option. The generic Portable Cordless Electric drills (Black, Green, Rose Gold, Silver) are the value tier and offer 35,000 RPM with 3/32" standard bit shank, cordless or corded operation, but ship with shorter 30-day warranty and lower-spec motor reliability over time.
Specs comparison: RPM, battery, voltage, warranty
Use this matrix to match drill specs to the salon's service tier. Higher RPM = faster acrylic and dip work but harder to control on cuticle prep; lower RPM = finer cuticle work but slower on heavy filing.
| Model | Top RPM | Motor type | Battery life | Voltage | Warranty | Price (USD) |
|---|---|---|---|---|---|---|
| KUPA Passport KP-65 | 30,000 (box) / 25,000 (handpiece) | Coreless Japan motor | 8 to 10 h | 110/220V auto | 1 year | Premium |
| KUPA Passport NEXT KP-65 | 30,000 | Coreless Japan motor | 8 to 10 h | 110/220V auto | 1 year | Premium |
| Medicool Pro Power 35k | 35,000 | Rechargeable | Rechargeable | 110/220V | 1 year | Premium |
| Medicool Pro Power 20k | 20,000 | Rechargeable | Rechargeable | 110/220V | 1 year | Premium |
| Kiara Sky Portable | (per brand spec) | Portable | Rechargeable | 110/220V | 1 year | Premium |
| LAVIS Nail Drill | 35,000 | Brushless | 8 to 10 h (3 h charge) | 110/220V auto | 1 year | Mid |
| LDS Nail Drill | (per brand spec) | Portable | Rechargeable | per brand spec | per brand spec | Mid |
| Generic cordless | 35,000 | Brushed | 8 to 10 h | Single 110V | 30 days | Value |
RPM comparison chart
The visual below maps the top-RPM rating of each model against price tier. Higher bars indicate faster spindle speed; the price label on each bar reflects the ND wholesale tier.
Three drills, three tiers
How to pick the right nail drill
Match the drill model to the salon's daily service mix and the technician's skill level:
- High-volume salon (8+ full sets per day): anchor on KUPA Passport with KP-65 handpiece. The Japanese coreless motor is engineered for daily 8-hour use over multi-year salon ownership cycles. Pair with the Medicool Pro Power 35k as the secondary backup unit.
- Mid-volume salon (3 to 6 sets per day): pick the LAVIS Nail Drill. Brushless 35,000 RPM motor + HD display + Smart Safety Overload give salon-grade reliability at value-tier pricing. Color match to salon decor with 7 finish options.
- Salon doing primarily gel + cuticle prep (light filing): pick the Medicool Pro Power 20k. The 20,000 RPM ceiling gives finer cuticle control without the runaway speed risk that high-RPM drills introduce for newer technicians.
- Mobile/pedicure-bar tech needing dual-voltage portability: KUPA Passport with the stainless steel belt clip + plastic handpiece holster. The 8 to 10 hour battery handles full-day mobile work without recharge.
- New salon owner or DIY pro on a mid-tier budget: the LAVIS Nail Drill covers the salon-grade spec gap that the generic cordless drills miss (brushless motor reliability + safety overload + dual-voltage + acetone resistance).
- DIY home tech doing 1 to 2 sets per week: the value-tier cordless drills. The 35,000 RPM rating matches premium drills on paper but expect motor fatigue under daily salon-grade duty cycles. 30-day warranty signals the use case.
Bit and accessory compatibility
Most professional nail drills at ND use the industry-standard 3/32 inch bit shank size, which makes the bit inventory portable across drill brands. Check the handpiece spec on each model: KUPA, LAVIS, and Medicool handpieces all accept 3/32 inch shank bits.
The matching bit catalog at ND ships across four sub-collections:
- Prep Bits, 15 SKUs for cuticle prep and initial nail surface buffing
- Refine Bits, 75 SKUs for shape refinement and final smoothing
- Removal Bits, 65 SKUs for gel polish, acrylic, and dip powder removal
- Sanding Bits, 8 SKUs for sanding bands and pumice rolls
The full Drill Bits + Sanding Band category at ND covers 134 SKUs total. Stock 8 to 15 bits per technician station for the daily salon service mix.
Safe application workflow
Daily safe drill operation is a 5-step technician discipline, not a feature of the drill itself. The strongest drill in the salon causes injury when applied wrong; the weakest drill is safe under proper technique.
- Set RPM to the lowest range that does the job. Cuticle prep: 4,000 to 7,000 RPM. Gel polish removal: 8,000 to 15,000 RPM. Acrylic shaping: 15,000 to 25,000 RPM. Heavy acrylic removal: 25,000 to 35,000 RPM. Never max-RPM for prep work.
- Move the drill, not the nail. Keep the client's finger stable on a rest. The drill moves in light sweeping passes across the nail surface.
- Apply zero downward pressure. The bit cuts at high speed; pressure causes heat buildup that burns the natural nail layer. If the bit is not cutting, switch to a fresher or coarser bit.
- Forward direction for right-hand technicians. Switch to Reverse only for left-hand work or specific corner cuts where the bit direction matters for safety.
- Check the natural nail every 30 seconds. Stop if the client reports heat, vibration, or any unusual sensation. Heat is the first warning sign of over-filing.
Maintenance and sterilization
The handpiece is the high-wear part of the drill system. Daily disinfection plus weekly motor maintenance extends the handpiece life from 12 to 18 months on heavy duty cycles up to 36+ months on disciplined maintenance.
- Between every client: wipe the handpiece exterior with 70 percent isopropyl alcohol. Soak the bit in barbicide or equivalent for 10 minutes minimum, then dry before next use.
- Daily end of shift: remove the bit, wipe the chuck interior with a microfiber swab + isopropyl. Inspect for dust buildup at the air vents.
- Weekly: open the chuck mechanism per the handpiece manual, lubricate per manufacturer instructions (KUPA + Medicool ship with maintenance instructions; LAVIS handpiece is maintenance-free brushless).
- Monthly: inspect cord and battery contacts for wear. Test the safety overload by intentionally stalling the bit briefly; the motor should pause.
- Annually: ship the handpiece to the manufacturer for full service if the motor RPM has dropped below 80 percent of spec.
Acetone resistance matters for the control box finish: every premium drill at ND ships with Acetone Resistant Finish (KUPA, LAVIS, Medicool). The generic cordless drills do not guarantee acetone resistance; salon owners using acetone for daily gel removal should not pick from that tier.
Troubleshooting common drill failures
| Failure mode | Likely cause | Fix |
|---|---|---|
| RPM dropping under load | Battery aging (1 to 2 year cycle) OR motor wear | Charge battery to full. If still slow, ship handpiece for service. |
| Vibration increasing over time | Bit not seated correctly in chuck OR chuck mechanism worn | Reseat bit. Clean chuck. If persistent, replace handpiece. |
| Motor overheating after 30 minutes | Continuous high-RPM use without break OR clogged air vents | Take 5-minute breaks every 30 minutes. Clean vents with compressed air. |
| Battery life dropping below 4 hours | Battery cycle aging (typical 18 to 24 months heavy use) | Replace battery if available, or replace control box if integrated. |
| Auto-stop activating during normal use | Safety overload triggered by binding bit | Stop, check bit for damage or jam. Replace bit if cracked. |
Wholesale pricing at ND
ND offers wholesale pricing on the full nail drill catalog across all brand families. No business license required, no minimum order, no membership fee. Free shipping on every order of $100 or more, same-day dispatch on in-stock drills ordered before 2pm PT weekdays.
For salon setup bundles, pair the drill with a UV/LED nail lamp from the Lamps category and a dust collector for a full station. Each is its own listing; the salon-grade combination is a KUPA Passport or LAVIS drill, a 2-in-1 lamp, a dust collector, and a starter bit set.