Techdent® Handpiece #4145 – Perfect Advance Automatic Handpiece

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The Techdent 4145 Technic Perfect Advance Automatic Handpiece is a professional quick-release jeweller's handpiece designed for precision drilling, milling, stone setting, deburring and polishing. Manufactured in France, it combines a lightweight ergonomic design, robust construction and smooth operation for intensive use in jewellery making and goldsmithing workshops.

Featuring a tool-free automatic chuck, precision bearings and a maximum speed of 25,000 RPM, the Techdent 4145 offers excellent control, convenient accessory changes and reliable performance for demanding rotary work.

Key Features

• Automatic Quick-Release Chuck – Fast, tool-free accessory changes for efficient workshop operation.
• Up to 25,000 RPM – Suitable for a wide range of precision rotary applications.
• Lightweight Ergonomic Design – Weighs just 140g for comfortable handling during extended use.
• Precision Bearings – Designed for smooth, stable rotation and accurate tool control.
• Reduced Vibration – Helps improve comfort and precision during detailed work.
• Durable Construction – Aluminium handle with a brass, steel and stainless steel mechanism.
• Versatile Tool Compatibility – Standard 2.35mm collet specification, with a stated 0–3.2mm gripping range.
• Made in France – Professional-quality Techdent engineering.

Advanced Ergonomics & Professional Performance
The Technic Perfect Advance 4145 combines the strengths of earlier Techdent handpieces with an improved ergonomic shape for better grip and manoeuvrability.

Its lightweight aluminium handle replaces the heavier brass construction of the previous generation, helping reduce hand fatigue during prolonged jewellery work. The internal mechanism retains robust metal components for durability and intensive workshop use.

The optimised mechanism provides smooth movement, while the automatic chuck makes changing compatible drills, burs and polishing accessories quick and convenient.

Ideal Applications: 

• Jewellery Making & Goldsmithing – Precision rotary work during jewellery manufacture and repair.
• Stone Setting – Controlled drilling, burring and preparation work.
• Drilling & Milling – Using compatible drills, burs and rotary cutters.
• Deburring – Removing unwanted edges and refining metal components.
• Polishing & Finishing – Using suitable brushes, polishing tools and finishing accessories.
• Professional Workshop Use – Designed for regular, intensive operation.

The Techdent 4145 Technic Perfect Advance Handpiece is designed for use with a compatible Techdent hanging motor (suspended motor), providing flexible rotary power for precision jewellery making and workshop applications.

Explore our Techdent Hanging Motor to complete your professional jewellery workshop setup.

Why Choose the Techdent 4145?
The Techdent 4145 Technic Perfect Advance combines precision, lightweight comfort and professional durability in a compact automatic handpiece. Its quick-release chuck, ergonomic aluminium handle and smooth-running mechanism make it an excellent choice for jewellers, goldsmiths and stone setters who require efficient, accurate rotary tool control.