Very practical double ended pin vise. You can use it with any small drill bits. This vise is very easy to use and saves you time because you can have 2 different drill bits at the same time, one at each end.  Comes with 2 reversible collets (also called chucks or bit holders) on the two ends, that fit bits which are 0-1.2, 1.3-2.4, 0.8-2.0 and 1.8-3 mm. To reverse the collet just unscrew it, reverse it and screw it again. Drill bits are not included.