THE SUNNEN K12-370AH HONING MANDREL IS A PRECISION TOOL DESIGNED FOR HONING APPLICATIONS, OFFERING A HONING DIAMETER RANGE OF 0.370 TO 0.385 INCHES (APPROXIMATELY 9.40 TO 9.78 MM). IT FEATURES AN ABRASIVE LENGTH OF 1.75 INCHES (44.45 MM) AND A REACH LENGTH OF 3.625 INCHES, MAKING IT SUITABLE FOR A VARIETY OF HONING TASKS. CONSTRUCTED FROM HARDENED STEEL WITH A MATERIAL HARDNESS OF HRC 58-62, THIS MANDREL ENSURES DURABILITY AND PRECISION IN HONING OPERATIONS.