This set includes 2 tools & one spanner. 1. Large for wide rings. 2. Small for slim rings. Spinning Ring Flarer set, Is the perfect tool for flaring both wide & slim bands. Perfectly equal flared edges for making spinning rings every time with no hammering. This new tool not only saves time but will create a perfectly even concave shape by simply putting the band in the device and tightening to achieve the desired result. How to use :- Using the Spinning Ring Edge Expander is easy; assemble your band onto the expander, hold the ‘T' nut in a bench vice and tighten the bolt until you achieve the desired amount of flare. Work from both sides of the ring by rotating the ring axially in the expander to ensure an even flare.