The Saeshin BRILLIAN B140D + 105LN 45K is a professional electric nail drill designed for technicians who need higher speed, strong torque, and a more durable setup for manicure, pedicure, and heavy salon use. The sources for this exact model consistently identify it as the B140D control box paired with the 105LN handpiece, not the unrelated B350/H350 set mentioned at the top of your raw text.

Key Features

• Up to 45,000 RPM
• 4.0 Ncm torque
• 65W power / DC 0–32V output
• 105LN handpiece included
• Digital speed display
• Variable foot pedal
• Hand / Foot selector switch
• Overload / overheat protection
• 110V/220V switching
• Strong fit for dry pedicure and heavy-duty salon work

Why It Works Well for Professional Pedicure Use

This model is best positioned for nail techs who want more power than standard 30K–35K sets. Multiple seller and distributor pages specifically recommend the B140D + 105LN for dry pedicure and heavier salon workloads because the 105LN is one of the stronger brushed Saeshin handpieces in this range.

105LN Handpiece

The 105LN handpiece is the main performance driver in this set. Across the sources, it is consistently listed at 45,000 RPM, 4.0 Ncm torque, 199 g without cord, and about 153 × 29 mm, with standard 3/32" / 2.35 mm bit compatibility.

What’s Included

The set is listed with the B140D control box, 105LN handpiece, variable foot pedal, and standard holder/accessory components depending on seller packaging. The strongest common package items are the control box, handpiece, and pedal.

Technical Specifications

• Product type: Professional electric nail drill
• Model: BRILLIAN B140D + 105LN
• Speed: up to 45,000 RPM
• Torque: 4.0 Ncm
• Power: 65W
• Output: DC 0–32V
• Input: 100–120V / 220–240V
• Control box weight: 1.6 kg
• Handpiece weight: 199 g without cord
• Handpiece size: 153 mm × Ø29 mm
• Bit size compatibility: 3/32" / 2.35 mm
• Origin: Made in Korea

Best For

This model is a strong choice for technicians who want a high-torque salon e-file for dry pedicure, product removal, and heavy daily use, while still keeping a compact control box and standard 3/32" bit system.

Important Note

When switching between forward and reverse, the motor should come to a complete stop first. This warning is also included in the product text you provided and appears across Saeshin product guidance for similar systems.