$350.00
You Saved
The Bergeon 7902-HEX is a high-quality hexagonal screwdriver set designed for watchmaking, precision instrument repair and model‑making. It includes five quick-change adapters from the Bergeon 7902 series, each fitted with a 54 HRC hardened stainless steel hexagonal bit (sizes 1.50, 2.00, 2.50 and 3.00 mm) and one medium‑grain 4.00 mm polishing stick (7129-4-M). All components are presented in a classic black cardboard box, ideal for professionals who need to change bits frequently.
Quick‑Change Adapters – Five 7902 series adapters allow tool‑free bit switching in seconds.
Hardened Hex Bits – 54 HRC stainless steel, durable, for 1.50, 2.00, 2.50, 3.00 mm hex screws.
Includes Polishing Stick – 4.00 mm medium‑grain (7129-4-M) for surface finishing.
Swiss Precision – Genuine Bergeon, trusted worldwide.
Compact Storage – Classic black cardboard box, neat and portable.
| Parameter | Details |
|---|---|
| Brand | Bergeon (Swiss) |
| Model | 7902-HEX |
| Set Contents | 5 adapters + 4 hex bits + 1 polishing stick |
| Hex Bit Sizes | 1.50 / 2.00 / 2.50 / 3.00 mm |
| Bit Hardness | 54 HRC (hardened stainless steel) |
| Polishing Stick | 4.00 mm medium‑grain (7129-4-M) |
| Adapter Series | Bergeon 7902 |
| Packaging | Black cardboard box |
| Origin | Switzerland |
| Condition | Brand new, genuine |
Q1: Does this set include a screwdriver handle?
A: No. This set includes five quick‑change adapters (four with hex bits, one with a polishing stick). You need a Bergeon 7902 series screwdriver handle (e.g., 7902-1 or 7902-2) to use them.
Q2: What is the hardness of the bits and how durable are they?
A: The bits are made of 54 HRC hardened stainless steel, which is sufficient for the moderate torque encountered in watchmaking and precision instruments.
Q3: What is the polishing stick used for?
A: The 4.00 mm medium‑grain polishing stick is used for removing fine burrs from metal parts, cleaning screw slots, or lightly abrading plastic surfaces. Simply hold the plastic handle and move the stick in a single direction over the workpiece.
Q4: What is the purpose of the coloured rings on the adapters?
A: The coloured rings provide a quick visual reference for the bit size, improving workflow efficiency and reducing confusion.
Q5: What if the polishing stick wears out? Can it be purchased separately?
A: Yes, the Bergeon 7129‑4‑M polishing stick (medium grain, 4mm) is available separately. Other grit sizes in the 7129 series are also available for different finishing tasks.
Fast worldwide shipping within 3 business days.
Competitive pricing on Seiko/Hattori calibers.
3,000+ watch movements and parts in stock.
Trusted by watchmakers worldwide.
Personalized sourcing support via [email protected] or WhatsApp +86 18620212114.
