Value Collection 501-.256/1.65 Thread Wire Anvil Accessory

Product Description

The VALUE COLLECTION 501-.256/1.65 is a thread wire anvil accessory designed for use with micrometers requiring precision thread measurement. This component replaces or supplements the standard anvil on compatible micrometer bodies, enabling accurate pitch diameter measurement of threaded fasteners and tapped holes. The wire diameter is 0.0650 inches, and the anvil is engineered to seat correctly on Tesa micrometer spindles with a 0.256-inch spindle diameter. Metrology technicians, machinists, and quality control professionals use this type of accessory when standard flat anvils cannot produce reliable thread pitch diameter readings.

This thread wire anvil is intended for bench-level metrology work in machine shops, manufacturing facilities, and quality labs. It is suited to applications where thread pitch diameter must be verified to close tolerance using the three-wire or anvil-wire method. The accessory is sold as a single unit and is sized specifically for Tesa micrometer frames with 0.256-inch diameter spindles. It is not a general-purpose anvil and should be matched to the correct micrometer frame before use.

Key Features

• Thread wire anvil configuration supports pitch diameter measurement of external threads
• Wire diameter of 0.0650 inches for compatibility with specific thread pitch ranges
• Designed for Tesa micrometer frames with 0.256-inch diameter spindles
• Sold as a single accessory unit, quantity of one per package
• Lightweight at 0.02 pounds for easy bench handling

Compatibility

Designed for use with Tesa micrometer frames equipped with 0.256-inch diameter spindles. Verify spindle diameter on the micrometer frame before installation to confirm fit.

Installation Notes

Installation of thread wire anvil accessories should be performed by a qualified metrologist or machinist familiar with micrometer maintenance procedures. Ensure the micrometer is fully zeroed and the spindle is clean and free of debris before seating the anvil. Do not force-fit the anvil onto a spindle of a different diameter, as this can damage the measuring faces and introduce calibration error. After installation, re-verify zero and calibrate the instrument before taking measurements.