Extended 1/4-20 rivet nut mandrel set for pre-bulbed nuts
✔️ Includes 1 extended mandrel and 1 nosepiece for rivet nut installs

This item is a 1/4-20 extended mandrel and nosepiece designed to install pre-bulbed rivet nuts using manual rivet nut guns. It supports multi-grip compatibility for common models, making it a handy upgrade for workshop jobs that involve threaded inserts.

✅ Includes 1/4-20 extended mandrel and 1/4-20 nosepiece for pre-bulbed rivet nuts (1/4-20 UNC / 6.35 mm, 0.25 in)
✅ Designed for use with manual rivet nut guns (not standalone)
✅ Multi-grip compatibility across popular gun models
✅ Notes: extended design requires more rotations and proper stroke to prevent deformation; ensure threads are fully seated before locking the spring sleeve

💡 What is a rivet nut mandrel set used for in manual installation tasks? This handy guide explains how it improves control and results. - Designed for precise seating of pre-bulbed rivet nuts (1/4-20 / 6.35 mm) - Compatible with multi-grip manual rivet nut guns for different setups - Extends reach to install longer rivet nuts while keeping piston stroke in check - Helps avoid over-deformation by following correct procedure