Spi 91-295-6 V-block 2-3/8 in 90 Degree Matched Pair

Product Description

The SPI 91-295-6 is a matched pair of cast iron V-blocks designed for precision workholding, inspection, and layout work on flat surfaces. Each block features a 90-degree V angle and accepts round stock from 1-9/16 inches minimum to 2-3/8 inches maximum capacity. Overall dimensions are 4-3/4 inches in length, 1-3/8 inches in width, and 4-3/4 inches in height. V parallelism is held to 0.0012 inches and squareness per 1 inch is 0.0012 inches, making these blocks suitable for precise cylindrical part inspection and machining setups. These are sold as a matched pair.

These V-blocks are used in machine shops, tool rooms, and quality inspection environments. Typical applications include supporting shafts, pins, and round bar stock during grinding, milling, layout, or inspection operations. The cast iron construction provides stable, vibration-damping support on surface plates or magnetic chucks. Machinists, tool and die makers, and quality control technicians working with cylindrical workpieces up to 2-3/8 inches in diameter will find these blocks appropriate for their setups.

Key Features

• 90-degree V angle for secure cylindrical workpiece support
• Maximum V capacity of 2-3/8 inches; minimum capacity of 1-9/16 inches
• V parallelism of 0.0012 inches for precise alignment
• Squareness of 0.0012 inches per 1 inch for accurate layout and inspection
• Cast iron construction for rigidity and vibration damping
• Sold as a matched pair for paired-support setups

Compatibility

Designed as a standard 90-degree V-block pair for use with cylindrical workpieces in general machining, inspection, and layout applications requiring a V capacity range of 1-9/16 inches to 2-3/8 inches.

Installation Notes

V-blocks are typically set up by machinists or quality technicians on a surface plate or machine table. Ensure the mounting surface is clean and free of chips or burrs before placing the blocks. When used for inspection, verify the surface plate is level and that both blocks of the matched pair are seated fully before indicating or measuring. These blocks are non-magnetic and are not intended for use directly on magnetic chucks without mechanical securing.