Trephine - Inside Ø 9.0 mm, Sheath 2.35 mm x 30 mm Lg, 17 Teeth Graduation 7/10/13/16 | Helmut Zepf No. 08.910.11
The dental trephine 9mm surgical instrument from Helmut Zepf is a precision-engineered tool designed for demanding oral surgical procedures. Featuring an inside diameter of 9.0 mm, this trephine delivers consistent, controlled cutting performance in clinical environments.
Key Specifications
- Inside Diameter: 9.0 mm
- Sheath Dimensions: 2.35 mm x 30 mm length
- Number of Teeth: 17
- Tooth Graduation: 7 / 10 / 13 / 16
Product Overview
Manufactured by Helmut Zepf GmbH in Germany, this dental trephine 9mm surgical instrument meets the high standards expected in professional dental and oral surgery settings. The graduated tooth pattern — at 7, 10, 13, and 16 mm intervals — allows the clinician to monitor depth during osseous procedures with accuracy and confidence. The 2.35 mm sheath diameter and 30 mm working length provide ergonomic compatibility with standard surgical handpieces.
As a dental trephine 9mm surgical instrument, it is suited for use in bone harvesting, core biopsy sampling, and site preparation procedures. Helmut Zepf instruments are recognized for their consistent quality and reliable performance across a wide range of clinical applications.
Why Choose Helmut Zepf?
Helmut Zepf GmbH has a longstanding reputation for producing high-quality dental surgical instruments. Each piece is crafted in Germany using rigorous manufacturing standards, ensuring durability, precision geometry, and dependable clinical outcomes. This dental trephine 9mm surgical instrument reflects that commitment to excellence.
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 this trephine used for? It is used in oral and maxillofacial surgical procedures including bone coring, biopsy, and implant site preparation.
What do the graduation markings indicate? The graduation markings at 7, 10, 13, and 16 mm help the surgeon monitor and control the depth of penetration during procedures.
Is this instrument compatible with standard handpieces? The 2.35 mm sheath is designed for compatibility with standard surgical handpiece connections, though confirmation with your specific equipment is recommended.
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.
