Fowler 52-475-555-0 V-block Set 2 Inch 90 Degree Matched Pair

Product Description

The FOWLER 52-475-555-0 is a matched pair of steel V-blocks designed for precision workholding in layout, inspection, and machining setups. Each block features a 90-degree V-angle and accepts round workpieces up to 2 inches in diameter. The set ships with two clamps to secure cylindrical stock firmly in the V-groove during measurement or machining operations. Overall dimensions are 2.75 inches long, 2 inches wide, and 2 inches tall. V parallelism is held to 0.0002 inches and squareness to 0.0002 inches, making these blocks suitable for applications where consistent, repeatable workpiece positioning is required. Machinists, toolmakers, and quality-control technicians are the primary users.

These V-blocks are used in machine shops, tool rooms, and inspection departments for holding shafts, pins, and other cylindrical parts during surface plate work, grinding setup, and dimensional inspection. The matched-pair format ensures both blocks are dimensionally consistent with each other, which is critical when supporting a single workpiece across two contact points or when performing comparative measurements. The included clamps allow the workpiece to be locked in place without additional fixturing hardware.

Key Features

• Matched pair - both blocks are dimensionally consistent for two-point workpiece support
• 90-degree V-angle accommodates a wide range of cylindrical diameters up to 2 inches
• V parallelism held to 0.0002 inches for precise, repeatable positioning
• Squareness tolerance of 0.0002 inches supports accurate layout and inspection work
• Includes two clamps to secure workpieces within the V-groove
• Steel construction for durability in shop and inspection environments
• Non-magnetic - suitable for use near sensitive measurement instruments

Compatibility

Designed as a general-purpose matched V-block set for use on surface plates and machine tool setups where cylindrical workpieces up to 2 inches in diameter require stable, accurate support.

Installation Notes

V-blocks should be placed on a clean, flat surface plate or machine table free of burrs and debris before use. Verify that the V-groove and mating surfaces are wiped clean to avoid measurement errors caused by contamination. Clamps should be tightened evenly and only enough to hold the workpiece without distorting it. Handling precision ground tools with care and storing them in a protective case will preserve the ground surfaces and maintain tolerance specifications.