Interstate SPEH 322.5 IN/UA A1 Carbide Indexable Milling Insert

These are new Interstate Carbide indexable milling inserts, part number SPEH 322.5 IN/UA, grade A1, as read directly from the package label (Interstate catalog # 46474, box # 73025405). The SPEH designation indicates a square insert with a hole, positive clearance geometry, and a 2.5 mm nose radius, sized at 3/2 (approximately 3/8 in IC), intended for indexable face milling and shoulder milling operations. The inserts display a gold TiN-type PVD coating visible in the photos, consistent with the A1 grade designation used by Interstate for general-purpose steel and cast iron milling. The package contains 10 inserts in new, unused condition in the original Interstate plastic clamshell case. Compatible toolholders are those accepting SPEH-style square positive inserts with the corresponding seat geometry — buyers should verify seat size and screw bore compatibility with their specific cutter body before ordering.

Product Specifications