Value Collection 315-1220 Round Die 3/8-32 Hss Unef

Product Description

The VALUE COLLECTION 315-1220 is a round threading die designed to cut external threads on cylindrical workpieces. It produces a 3/8-32 UNEF (Unified Extra Fine) right-hand thread and is manufactured from high-speed steel (HSS) for durability across a range of ferrous and non-ferrous materials. The adjustable design allows the operator to fine-tune thread fit by closing or opening the die body with the set screw, enabling both roughing and finishing passes with a single tool. Machinists, toolroom technicians, and maintenance mechanics use this die for threading bolts, studs, and shafts to UNEF specifications.

This die is suited for threading operations in machine shops, maintenance facilities, and production environments where the 3/8-32 UNEF thread form is required. The extra-fine pitch is common in applications where thin-walled material, fine adjustment, or vibration resistance is a priority. It is used in both manual die stock holders and bench-mounted threading setups. The right-hand thread direction is standard for the majority of fastener and mechanical threading applications.

Key Features

• 3/8-32 UNEF thread size for extra-fine pitch threading on 3/8-inch diameter stock
• High-speed steel construction for wear resistance and extended tool life
• Adjustable body allows fine-tuning of thread fit and allows roughing and finishing passes
• Right-hand thread direction — standard orientation for most threading applications
• UNEF thread standard for compatibility with unified extra-fine fastener specifications

Compatibility

Designed for use in standard round die stock holders sized to accept the 315-1220 round die body. Cuts 3/8-32 UNEF right-hand external threads on workpieces within the appropriate diameter range.

Installation Notes

Secure the die firmly in a properly sized die stock before use. Ensure the workpiece is clamped or fixtured to prevent movement during threading. Apply cutting oil or threading fluid to the workpiece and die to reduce heat and improve thread finish. Inspect the die for chips or damage before each use and adjust the set screw to the desired thread tolerance before cutting.