Trephine - Inside Ø 1.7 mm, Sheath 2.35 mm x 30 mm Lg. 7 Teeth, Grading: 7/10/13/16 | Helmut Zepf No. 08.910.01
This dental trephine surgical instrument from Helmut Zepf GmbH is engineered for precise osseous core removal and tissue sampling in oral surgical procedures. Designed to exacting standards, this trephine features an inside diameter of 1.7 mm with a sheath measuring 2.35 mm in diameter and 30 mm in length, incorporating 7 teeth with a graduation of 7/10/13/16 — delivering consistent, repeatable cutting performance in demanding clinical environments.
Product Specifications
- Inside Diameter: 1.7 mm
- Sheath Dimensions: 2.35 mm x 30 mm length
- Number of Teeth: 7
- Graduation: 7/10/13/16
- Reference: Helmut Zepf No. 08.910.01
Precision German Craftsmanship
As a dental trephine surgical instrument, this tool reflects Helmut Zepf's longstanding commitment to quality manufacturing based in Germany. The precise tooth geometry and clearly marked graduation allow clinicians to monitor drilling depth with confidence, minimising risk and improving surgical outcomes. The sheath design provides stable guidance throughout the procedure, ensuring straight, controlled penetration into hard tissue.
Clinical Applications
This dental trephine surgical instrument is well-suited for a range of oral surgery applications, including bone core biopsies, implant site preparation, and guided bone regeneration procedures. The fine 1.7 mm internal bore enables targeted sampling while preserving surrounding tissue integrity. Clinicians who demand accuracy and reliability will find this instrument a dependable addition to their surgical armamentarium.
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 is the inside diameter of this trephine? The inside diameter is 1.7 mm, with a sheath of 2.35 mm x 30 mm length.
How many teeth does this dental trephine surgical instrument have? It features 7 teeth with a graduation of 7/10/13/16.
Where is this instrument manufactured? This instrument is made in Germany by Helmut Zepf GmbH.
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.




