Hand drill length: 7.1inch,Chuck Clamping Range: 0.6-6mm, comes with a chuck key to screw the collet. Pin vise hand drill is wildly use for precision drilling.Drill bit diameter: 1.5/2.0/3.0/4.0/5.0mm,drill bits to meet your various.Drill bits are stored inside the unit itself as shown in the images.High Quality:Carbon steel hand drill & ABS plastic handle, nonskid and high hardness!easy and comfortable to grip. The hollow handle with a cap can be used to store tiny drill bits, which avoids missing and is more convenient.Wide Application:The pin vise set is ideal for drilling wood, resin, jewelry, walnut, amber, beeswax, olive nut, beads, PVC, acrylic and plastic, horn, olive, etc;not suitable for hard materials like stone, metal, glass,etc. When rotating the manual drill, feel the process and pleasure of creating handmade works.This hand drill is small, light weight and portable, it can fit into many tool bags and you can take it anywhere. Note: This is a manual drill and must be rotated manually.