In-tool-home Semi-automatic Spiral Hand Drill with Spring Chuck Pin Vise with Twist Drill Bits Set of 21 Pin Vise Holds Micro Drill Bits from 0.08-.0.8-Inch. (0.2-2.0mm) Sliding Spiral allows for fast bit spinning action Brass and Steel Construction Overall Length: 4.6-Inch Package include:1 x hand drill 2 x collet