Fits DK2 Stump Grinder Model# OPG777 & for Power King Stump Grinder Model# PK0803,Summer products Heavy-duty carbide construction Carefully designed for high speed cutting Provides extended life and efficiencySpecifications Kits Includes： 3 left w/hardware, 3 right w/hardware 3 straight w/hardware Cast holder with dual bolt, with high I,pact carbide cutting plates and hex pockets for anti-rotation of mounting bolts. If you encounter any problems during use, please contact me immediately and we will give you a satisfactory Set Of 9 Carbide High speed cutting Teeth Fits DK2 Stump Grinder Model OPG777 & for Power King Stump Grinder Model PK0803