Bergeon 7745-PG Grove holder Ø 4.7 mm

The Bergeon 7745-PG is a genuine Swiss‑made grove holder with a shank diameter of 4.7mm and an overall length of 92mm. This precision component is a key accessory in professional watchmaker tool sets, primarily used to drive in and out connecting pins in metal watch bracelets, as well as to tighten or loosen bracelet link screws. It is compatible with multiple Bergeon tool systems, including press No. 6745, tool No. 6744, and staking tools No. 5285, making it an essential accessory for watchmakers resizing metal bracelets.

• Swiss Quality: Manufactured by Bergeon, a leading Swiss tool brand, ensuring top quality and adherence to professional watchmaking standards.

• Standard Shank: The 4.7mm shaft diameter is the common Swiss standard, compatible with Bergeon, Boley, and other major tool systems.

• Precise Length: 92mm overall length provides comfortable grip and sufficient working stroke.

• Groove Holding Design: Features a 4mm wide groove (or fork slot) at the front for gripping and guiding the pusher when driving bracelet pins in or out, ensuring vertical alignment and preventing deviation.

• Multi‑System Compatibility: Designed for use with pressing tool No. 6745, base No. 6744, and staking tool No. 5285.

• Precision Accessory: Commonly supplied as a spare part or accessory for complete bracelet press kits such as Bergeon 7745, 7744-1, or 7745-100.

Q1: Can the 7745‑PG be used with the Bergeon 5285 staking tool?
A: Yes. The staking tool No. 5285 uses a standard 4.7mm shank diameter, which matches the 7745‑PG perfectly. Therefore, the 7745‑PG can serve as a dedicated punch in the No. 5285 set for riveting and pressing operations.

Q2: What if the pusher won‘t tighten in the holder?
A: First, confirm that the pusher diameter matches the collet specification (typically 0.40‑1.80mm). If the diameter is correct but the collet still cannot secure it, the locking nut or internal gripping mechanism may be worn – replace the holder.

Q3: How to distinguish genuine Bergeon from counterfeit?
A: A genuine Bergeon 7745‑PG has finely finished surfaces, high‑precision threads, an even satin finish on the stainless steel, and “Swiss Made” markings or original packaging. Counterfeits often have rough workmanship, loose thread fit, and lack any brand marking.

Q4: Is this holder suitable for removing Rolex bracelets?
A: Yes. Rolex metal bracelets (e.g., Oyster bracelets) use standard friction pins. This holder, together with the Bergeon 6745 press and a correctly sized pusher, can safely and efficiently remove and install Rolex bracelet pins. Always select the correct pusher diameter for the specific link.

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