Starrett 64960 V-block 4 in Max Capacity Hardened Steel

Product Description

The STARRETT 64960 is a hardened steel V-block designed for precision workholding in machining, inspection, and layout operations. It features a 90-degree V angle and accepts round stock from 9/16 inch minimum up to 4 inches maximum capacity. At 5.25 inches overall width and 3 inches overall height, it provides a stable seating surface for cylindrical parts during marking, drilling, grinding, and measurement tasks. A clamp is included, allowing the workpiece to be secured without additional hardware. This V-block is sold as an individual unit.

This V-block is suited for machine shop, toolroom, and quality-control environments where accurate positioning of round or cylindrical workpieces is required. It is commonly used on surface plates, milling machine tables, and drill press tables. The hardened steel construction resists wear under repeated clamping and repositioning cycles, making it appropriate for production and inspection use alike. Machinists, tool-and-die makers, and quality technicians are the primary installers and users of this type of workholding equipment.

Key Features

• 90-degree V angle for consistent, repeatable cylindrical workpiece seating
• Accepts round stock from 9/16 inch to 4 inches in diameter
• Hardened steel construction for wear resistance and long service life
• Clamp included for securing workpieces without separate fixturing hardware
• 5.25 inch overall width provides a broad, stable base on surface plates and machine tables
• Non-magnetic — suitable for use with non-ferrous workpieces or sensitive measuring instruments

Compatibility

Designed as a standard V-block for use in general machining, inspection, and layout applications requiring a 90-degree V angle and up to 4 inches of round workpiece capacity.

Installation Notes

Place the V-block on a clean, flat reference surface such as a surface plate or machine table before seating the workpiece. Secure the workpiece using the included clamp, tightening evenly to prevent shifting without distorting the part. Always inspect the V-block seating surfaces for burrs or debris before use, as contamination will affect workpiece alignment. This is a hand-tool and inspection accessory — no power shutdown is required, but standard shop safety practices apply.