Trephine Inside - Ø 5.0 mm, Sheath 2.35 mm x 30 mm Lg, 9 Teeth Graduation 7/10/13/16 | Helmut Zepf No. 08.910.13
The dental trephine inside 5.0mm surgical instrument from Helmut Zepf is a precision-engineered tool designed for demanding oral surgical procedures requiring controlled core removal and tissue trephination. Crafted in Germany to exacting standards, this instrument reflects Helmut Zepf's longstanding commitment to quality and clinical reliability.
Product Specifications
- Outer Diameter: Ø 5.0 mm
- Sheath: 2.35 mm x 30 mm length
- Number of Teeth: 9
- Graduation: 7 / 10 / 13 / 16 mm
- Item Number: Helmut Zepf No. 08.910.13
Key Features
As a dental trephine inside 5.0mm surgical instrument, this tool is engineered for precision depth control during bone core procedures. The integrated depth graduation markings at 7, 10, 13, and 16 mm allow the clinician to monitor cutting depth in real time, reducing the risk of over-penetration and supporting consistent, reproducible results across procedures.
The 9-tooth cutting configuration is optimised for efficient tissue engagement, minimising heat generation and trauma to the surrounding surgical site. The 2.35 mm sheath dimension ensures compatibility with standard surgical handpiece systems commonly used in oral and maxillofacial applications.
Made in Germany
This dental trephine inside 5.0mm surgical instrument is manufactured in Germany, meeting the rigorous quality benchmarks associated with German dental instrument production. Helmut Zepf instruments are trusted by dental professionals globally for their durability, dimensional accuracy, and consistent clinical performance.
1-Year Warranty
This Helmut Zepf instrument is covered by a 1-year warranty against defects in materials and workmanship from the date of delivery.
60-Day Returns — Any Reason, Even If Used
Put this instrument to work in your practice. If it is not right for you, return it within 60 days of delivery for a full refund — for any reason, even if it has been used.

FAQ
What procedures is this dental trephine inside 5.0mm surgical instrument used for? It is primarily used for bone core trephination and guided tissue removal in oral surgical procedures, including implant site preparation and bone biopsy applications.
What do the graduation markings indicate? The graduation markings at 7, 10, 13, and 16 mm allow the clinician to monitor cutting depth during the procedure for precise, controlled results.
Is this instrument compatible with standard surgical handpieces? The 2.35 mm sheath is designed for compatibility with surgical handpiece systems; please verify compatibility with your specific equipment before use.
Compare With
| Brand | Trephines — graduated, Ø 1.7–10.0 mm (30 mm sheath) – Base Designation |
|---|---|
| Karl Schumacher | C-08.910.03/04/05/06/07/08/09/10 |
| ACE Southern | 04-9480-01 … 04-9487-02 |
Base pattern designations shown. Same clinical pattern, not identical manufacture — see our Surgical Instrument Comparison Chart.
Manufacturer literature: ZEPF Dental Catalog (PDF) — more in our Catalogs & Product Library.
Backed by our Helmut Zepf Warranty — lifetime on extraction and explantation forceps, one year on every other Zepf instrument. Full terms and how to make a claim are on the Warranty page.




