Shop Grade HSS Single Flute Countersink Set, 12-piece, 82

Precise Precision Sine Plate - Size: 6" x 3-1/4" x 1-7/8 Applications Useful for holding work while inspecting, grinding and machining. Features 0.200" deep minute angle step in base. Made of hardened steel. Tapped holes in top plate. Includes (2) end rail