The Irwin Vise-Grip HAN3827 is a 5/16-18 NC adjustable round threading die with a 1-inch outer diameter, manufactured in the USA from hardened carbon steel (HCS) for reliable cutting performance and long service life. The adjustable design allows for fine-tuning thread fit and compensating for wear, making it suitable for both professional machinists and maintenance technicians.
Ideal for cutting external threads on bolts, rods, and fasteners in MRO, manufacturing, and general shop applications, this die delivers consistent, accurate 5/16-18 NC threads. Sold in bulk packaging for cost-effective stocking of toolrooms and production environments.