Original Feather Microtome Blade S35 A35 R35 H35 N35 C35 | Roundfin
1. Original Feather microtome blades manufactured in Japan with proprietary ultra-precision edge grinding technology
2. Six specialized low-profile variants: S35 (all-purpose), A35 (high-performance), R35 (routine), H35 (hard tissue), N35 (serial/ultrathin), C35 (clean cut)
3. Standard 80 x 8 mm dimensions — compatible with all low-profile blade holders from Feather, Leica, Roundfin, Thermo, and Sakura
4. Industry-leading edge consistency and sharpness — trusted by histopathology laboratories in over 100 countries worldwide
5. CE marked and manufactured under ISO 13485 quality management system with full batch traceability
6. 50 blades per safe-dispensing box with individually protected edges for contamination-free handling
Product Overview
The Original Feather Microtome Blade S35/A35/R35/H35/N35/C35 series is the industry standard in disposable microtome blades, manufactured in Japan with ultra-precision edge technology. These blades deliver exceptional sharpness, consistency, and durability for paraffin sectioning across all tissue types. Available in six specialized variants — from standard S35 to application-specific H35 (hard tissue) and N35 (ultrathin serial sections) — the Feather blade series is trusted by histopathology laboratories in over 100 countries worldwide.
Original Feather Microtome Blades — manufactured in Japan with proprietary ultra-precision edge grinding technology
Key Takeaway: Genuine Japanese-made Feather microtome blades — the global laboratory standard. Six variants: S35 (superior all-purpose), A35 (advanced high-performance), R35 (routine histology), H35 (hard tissue), N35 (serial/ultrathin), and C35 (clean cut). 50 blades per dispenser box. CE marked and ISO 13485 certified.
Technical Specifications
| Parameter | Specification |
|---|---|
| Available Variants | S35 (Superior all-purpose), A35 (Advanced high-performance), R35 (Routine), H35 (Hard tissue), N35 (Serial/ultrathin), C35 (Clean cut) |
| Profile Type | Low-profile (compatible with all low-profile blade holders) |
| Blade Dimensions | 80 x 8 mm (standard microtome blade format) |
| Origin | Japan — Feather Safety Razor Co., Ltd. |
| Packaging | 50 blades per dispenser box; individually protected edges |
| Certifications | CE marked; ISO 13485; JIS (Japanese Industrial Standards) compliant |
| Sterilization | Disposable single-use; pre-sterilized |
Key Features
- Japanese Ultra-Precision Manufacturing — Feather Safety Razor's proprietary edge-grinding technology delivers industry-leading sharpness and edge consistency batch after batch.
- Six Specialized Variants — From standard S35 to specialized H35 (hard tissue), N35 (ultrathin serial sections), and C35 (clean cutting), a blade optimized for every histology application.
- Low-Profile Standard Format — 80 x 8 mm dimensions compatible with all low-profile blade holders including Feather, Leica, Roundfin, Thermo, and Sakura systems.
- Consistent Sectioning Quality — Tight manufacturing tolerances ensure uniform blade thickness, bevel angle, and edge geometry for reproducible results across the entire blade edge.
- Safe Dispenser Packaging — 50 blades per box with protected edges and single-blade dispensing for safe handling, reduced contamination risk, and convenient inventory management.
- Global Laboratory Standard — Trusted by histopathology laboratories in over 100 countries; CE-marked and manufactured under ISO 13485 quality management system with full batch traceability.
Applications
- Routine histology and pathology sample-preparation workflows
- Clinical laboratories processing compatible specimens, blocks or slides
- Research and teaching facilities using microscopy and tissue-processing supplies
- Laboratories confirming size, material and equipment compatibility before ordering
Frequently Asked Questions
Which Feather blade variant should I choose for my application?
S35 is the all-purpose standard suitable for most routine paraffin sections. A35 offers enhanced edge performance for high-throughput labs. R35 is optimized for routine histology with balanced sharpness and durability. H35 provides extra rigidity for hard or calcified tissues. N35 is designed for ultrathin serial sectioning with minimal compression. C35 features an ultra-clean edge for artifact-sensitive applications such as IHC staining. Contact Roundfin for a blade selection guide tailored to your specimen types.
Are these authentic Feather blades or third-party equivalents?
Roundfin supplies 100% authentic, original Feather microtome blades manufactured by Feather Safety Razor Co., Ltd. in Japan. We are an authorized distributor, and every box carries genuine Feather packaging, lot numbers, and quality certification. Authenticity documentation is available upon request with every order.
What is the difference between low-profile and high-profile Feather blades?
Feather's S35, R35, N35, and C35 are low-profile blades designed for low-profile blade holders with finer clearance angles ideal for soft tissues and serial sectioning. A35 and H35 are higher-profile designs providing greater rigidity for dense specimens. Always match the blade profile to your holder type — using the wrong profile results in poor section quality and potential equipment damage.
How do I store Feather blades for maximum shelf life?
Store unopened dispenser boxes in a cool, dry environment (15-25°C) away from direct sunlight and humidity. Avoid temperature fluctuations that could cause condensation. Under proper storage conditions, Feather blades maintain full edge quality for 3 years from the manufacturing date. Once opened, use within 6 months and keep the dispenser closed when not in use to prevent dust accumulation on exposed edges.
Explore related histopathology consumables or contact Roundfin for configuration, compatibility and quotation details.
