Description
On UNI76-2nb Twin Roller Holder, the two rollers act as points of pressure when supporting the tube and thus help to form the material around the former. The forward roller is also positioned to reduce the lead that the tube has before it starts to bend, producing a better rounder back, especially when compared to the old method of using a single roller.
Other advantages are that the rollers do not wear like a guide will eventually, or cause any drag.
A pair of Rollers is required per diameter of tube.