Size options 35 x 35 x 30 mm 60 x 60 x 50 mm Clamping range Shank clamping size: 315 mm Material and hardness Made from fully hardened and ground tool steel Hardness: HRC 5258 Precision and alignment Vblocks are parallel, square, and centered within 0.0002 inches Key benefits Enables precise holding of cylindrical workpieces for machining, drilling, or inspection hardness and precision provide durable, repeatable performance over time Compatible with common clamp and fixture setups due to the 315 mm shank range Reduces setup time with reliable, consistent alignment and minimal runout Use scenarios Drilling or milling a round rod: position the rod in the Vgroove and clamp for accurate hole placement Jig and fixture work: use as a reference block to align cylindrical components in a multipoint setup Inspection and measurement: mount the part in the Vblock and check runout with a dial indicator for quality control Notes Specifications reflect two size options, a shank range of 315 mm, fully hardened tool steel (HRC 5258), and Vblock precision within 0.0002 inches.