

Cermet Series · Finishing
The T-5A Cavity Tool is a dedicated reamer for cartridge valve manifolds. It is a high-precision cavity cutting tool designed for machining hydraulic cartridge valve cavities, improving dimensional accuracy, geometric accuracy, and surface finish of multi-diameter bores. Used for precision machining of cartridge valve cavities in Sun Hydraulics hydraulic manifolds, including guide bores, oil passages, and valve seat bores, ensuring high bore accuracy and meeting strict hydraulic sealing and functional requirements. Suitable for multiple applications: one tool body can efficiently finish multiple bore diameters. The brazed cermet cutting edge minimizes wear and significantly extends tool life. Cavity Tool Types: High-Speed Steel Type A / Morse Taper Shank Type B / Solid Carbide Type C / Indexable Type D / Brazed Carbide Type E / Brazed Cermet Type R / Brazed PCD Type F.
| Item No. | T-5A D8101 |
|---|---|
| Type | Brazed Carbide Type E – Finishing |
| Product Name | Cavity Reamer / Cavity Tool |
| OEM / ODM | Made to your samples or drawings |
| Model | T-5A FT |
| Packaging (mm) | 40 × 150L |
| Applicable Brand | SUN Hydraulics |
| Guide Margin Dia. D | Ø22.25mm /0.8760 |
| Shank Dia. d | Ø25.0mm |
| Overall Length L | 140.0mm |
| Thread Tap | 1''-14UNS-2B Tap |
| Material | Cermet Insert |
| Coolant Through | Yes |
| MOQ | 2 pcs |
| Lead time | 1–4 weeks |
| Origin | Shenzhen, China |
Design details engineered for accuracy, tool life and process stability.
Excellent wear and heat resistance provide a longer service life than conventional tools, reducing replacement frequency and cost.
Cermet materials maintain excellent cutting performance under heavy-duty and high-temperature conditions.
Cermet retains its physical and chemical properties at elevated temperatures, making it suitable for superalloys and difficult-to-machine materials.
The T-5A D81021 brazed cermet cavity tool provides stable cutting performance through precision design and premium materials, improving machining accuracy and tool life.
The T-5A D8101 complies with Sun Hydraulics cartridge valve standards and is suitable for control, relief, directional, and distribution valves made from heat-treated alloy steel above HRC35.
Compared with solid carbide cavity tools, it offers higher wear resistance, higher cutting speeds and feeds, and bore surface roughness typically reaching Ra 0.4 or better.
Typical industries and parts machined with this tool.
Used for machining valve bodies and valve seats to ensure smooth flow and reliable sealing.
Used for machining cartridge valve cavities to ensure dimensional accuracy and superior surface finish.
Used for machining hydraulic control system components in engines and transmissions.
Used for high-precision hydraulic and pneumatic control system components.
Tell us the cartridge cavity standard and your valve-block material. We supply roughing and finishing cavity tools in standard sizes or made to your samples or drawings.