Manufacturer: WETOLS. Easy to Use: WETOLS 16" rivet nut tool is simple to use, and it has high reliability and comfortability of ergonomic design. The mandrel can be easily removed by hand. Complete Accessories: The rivet nut tool equipped with 11PCS interchangeable mandrels(M3 M4 M5 M6 M8 M10 M12, 10/24, 1/4-20, 5/16-18, 3/8-16) and 110pcs rivet nuts.