Value Collection EPRV225 Convex Knurl Wheel 1/2 in 25 Tpi

Product Description

The VALUE COLLECTION EPRV225 is a convex knurl wheel designed for use in manual or CNC knurling tool holders. It produces a right-hand diagonal knurl pattern on cylindrical workpieces using a form-type cutting method. The wheel measures 1/2 inch in diameter with a 3/16 inch face width and a 3/16 inch hole diameter. At 25 TPI with a 90-degree included tooth angle and a 30-degree helix angle, it generates a defined, repeatable texture suitable for grip surfaces, thumb screws, and similar machined components. The cobalt construction with a titanium nitride finish supports durability in high-cycle production environments. Machinists and toolroom technicians typically install and replace these wheels during knurling tool maintenance.

This wheel fits standard knurling tool holders that accept EPV series wheels with a 3/16 inch bore. It is suited for use on metal lathes and CNC turning centers where a convex diagonal knurl profile is required. Typical applications include producing grip textures on round stock in job shop, production machining, and toolroom settings. The right-hand diagonal pattern is commonly specified for single-wheel knurling setups where consistent helix orientation is needed across a batch run.

Key Features

• Convex wheel profile produces a defined diagonal knurl on cylindrical workpieces
• Right-hand diagonal tooth pattern at 25 TPI with a 90-degree included tooth angle
• 30-degree helix angle for consistent pattern engagement during form knurling
• Cobalt construction with titanium nitride finish for extended tool life
• 3/16 inch bore fits standard EPV series knurling tool holders
• Circular pitch system at 1.02 mm pitch for metric-compatible setup reference

Compatibility

Designed as a replacement or spare wheel for EPV series knurling tool holders accepting a 3/16 inch hole diameter and 1/2 inch wheel diameter.

Installation Notes

Installation is performed by machinists or toolroom technicians during knurling tool assembly or wheel replacement. The machine spindle should be stopped and the tool holder fully secured before removing or seating the wheel. Ensure the bore fit and axle pin are clean and free of chips before installation. Follow the tool holder manufacturer guidelines for proper wheel seating and axle torque procedures.