Features：<br />1. This shaft can be used for general formula hand drill chuck，also  can be used for electric screwdriver screwdriver (jig 1/4) use.<br />2. Shaft head can be mounted hexagonal shank (1/4 shank) the first batch，<br />3. Mainly for environmental work computer chassis， electrical cabinets， furniture， electrical appliances and so narrow space screwdriver does not work<br /><br />Specification：<br />1. Color：black<br />2. Weight:74g<br />3. Material：plastic + metal<br />4. Hex shank drill connecting portion size ：6.35mm (1/4)<br />5. Intra connection Hexagon site size： 6.35mm (1/4)<br /><br />Package included：<br />1 X Drill Connector<br /><br />Please  be noted， shaft ONLY， the price is without drill， drill only for reference!!!