Spindle Vise: Made of high quality aluminum alloy, durable and firm, adopts 3-claw chuck and 0.3-3.4mm adjustable collet range, which is sturdy and convenient for you, its tail can be rotated, easy to use Vise: made of aluminum alloy and plastic, light weight and small size make it convenient for holding and carrying, with 4 plastic clips for clamping square, round and irregular objects from 0-57mm Twist Drill Bits and Tiny Drill Bits: Drill bits are lightweight, do not take up extra space, and can be used for processing wood, plastic, rubber, PVC, walnut, model, bone, L-angle, amber, olive tree, fibermade of glass and other materials Fit dimension: the vise is approx. 3.54 x 0.6 inch/ 9 x 1.4 cm, the vise is approx. 4.3 x 2.4 x 1.4 inch/ 11 x 6.1 x 3.5cm, may be suitable for you to put in your pocket or bag Package content: 25-piece twist drill + black mini hand twist drill + large clamp bed