Profile: Harroun Enterprises manufactures cutting tools like mold mashers, HIBF, brazed end mills, solid carbide, milling, pin loc and button cutters. We offer a full line of cutting tools and accessories. The masher is available in 5 degree positive and 5 degree negative axial rake configurations. It employs two identical inserts each extending the cutting edge to centerline. The inserts dovetail into the end mill body ensuring no masher insert will ever be torn from its pocket no matter how heavy the cut is. (The inserts seat against a carbide shim, which dissipates the bearing load, thus greatly extending the tool body life.)