AVAK MaxDuty Flex N - Heavy Duty Flexible Handle 1/2" Blind Rivet Nut Setter (Standards UNC) Flexible handle for easy transport and storage without any power loss Heavy Duty: for #8-32, #10-24, 1/4-20, 5/16-18, 3/8-16 and 1/2-13 UNC Blind Rivet Nut QuickSwitch: 3 steps for functional dismount or assembly 3-in-1 Capable: Use up to 3 functions including metric/standards rivet nut/threaded inserts and rivet studs with optional add-on kits Packaged in a convenience case.