Diamond Honing Stones – 400 Grit Sunnen Metalbond Set for CV-616 & CK-10 Hones – Fits EHU525, EHU518, DM85 Holders – CK Series – 6 pcs

Achieve a smooth, controlled finish with this 400 Grit Diamond Honing Stone Set, engineered for Sunnen CV-616 and CK-10 honing machines and compatible with CK Series holders such as EHU525, EHU518, and DM85. Each stone is constructed with synthetic diamond abrasive bonded into a metalbond matrix, making it ideal for honing hardened steels, cast iron, and high-strength alloys. With a 400 grit rating, this set delivers a surface finish of approximately Ra 25–30, making it suitable for semi-fine honing or surface refinement before final polishing. Designed for bore diameters in the 3.000″ to 5.000″ range, this 6-piece set offers optimal wear resistance, easy mounting, and excellent dimensional accuracy for professionals in automotive, aerospace, and precision machining. Applications: Precision semi-fine honing Cylinder bore finishing Surface prep for coatings Tool & die and engine work

• ✅ Compatible with Sunnen CV-616 & CK-10 – Precisely fits CK Series Master Holders, including EHU525, EHU518, and DM85. 💎 Synthetic Diamond in Metalbond Matrix – Designed for hard materials, combining diamond abrasive with a durable metal-bond structure for consistent cutting and long life. ⚙️ 400 Grit – Ra Finish 25–30 – Ideal for semi-fine honing, offering a refined surface finish with controlled material removal. 📏 Bore Diameter Range: 3.000″–5.000″ – Applicable across a wide range of cylinder sizes, depending on hone head configuration.