6 X 4 X 1" Compound Angle Plate with Threaded Holes | Features ground vees for convenient holding of small round parts | Ground flat, square and parallel within 0.0002" | Wall dimensions are 6"x4"x1" | Solid 1 piece steel construction | Hardened to RC 58-62 | 16 tapped holes: 1/4"-20 | Includes 1 clamp and 3 bolts