This double ended pin vice is a useful tool when you want to do something by hand that may require a more precise application. Swiss made by Horotec

Hold it as you would a pen for hand carving and engraving on glass, stone or wood with a diamond ball burr. Use it for bead reaming with a diamond point burr, hold cup burrs for rounding off the ends of wires. Use it to stipple engrave on glass, or create fine hair lines or fur with a diamond point bur. Ideal for holding many items such as drill bits, burrs, cutting broaches, taps, wires, screws and winding stems.

Each end has a collet. Unscrew so that the teeth inside loosen and then place your drill, screw, reamer or burr inside and re-tighten. Two collets, one holds up accessories from 0.2mm - 1.0mm and the other end 1.30mm - 2.50mm

When you don't want to use an electric drill, or are perhaps unable to use a drill due to health and safety issues, these little pin vices will do the trick.