Mandrel 3/32" split straight
Mandrel 3/32" split straight. Sandpaper or split mandrels have a “split” above the reinforced base allowing the user to wind sandpaper, polishing cloth, or other abrasives around the gap. These mandrels come in straight and tapered styles and are generally used to sand in tight spots. The straight version is good for finishing smooth surfaces while the tapered offers access to undercuts.