Pin vices are very useful for holding small tools and components. Grip drill bits and burrs securely when drilling by hand,. Make fine adjustments to stone settings using burrs. Also use old polished burrs in a pin vise as burnishers. Change tooling and Pin vices can also be used for scribing reference lines or pilot holes. Clamp tubing for filing or broken saw blades for wax carving, the possibilities are endless.