Precision-engineered Sunnen M27 Honing Stone & Guide Shoe for AN Series Mandrel

Premium aluminum oxide abrasive stones deliver ultra-fine surface finishes (Ra 0.1-0.4μm) with 20% longer lifespan than standard stones. Hardened steel guide shoe ensures perfect mandrel alignment (±0.002mm tolerance) for cylinder bore refinishing.

Ideal for rebuilding hydraulic cylinders, automotive engine blocks, and industrial pump housings. Compatible with Sunnen AN-27, AN-30, and AN-35 mandrels.

Diamond-dressed stone edges maintain consistent cutting performance through 500+ honing cycles. Includes anti-clogging oil grooves for debris-free operation.

Global wholesale pricing with bulk discounts for machine shops and OEM suppliers. Certified to meet AS9100D aerospace standards.