Features:1.This product is connected with a ratchet wheel and a spiral cutter bar. When the lever is pressed, the spiral rod will automatically rotate. Each time you press the handle, the bit turns 1.2 times. According to the adjustment of the switch device, the tightening or tightening effect can be achieved, which is suitable for various occasions!2.Easily solve the problems of small space, deep screw position, and screw inaccessibility. One-handed pressing operation can be used in location where other screwdrivers cannot be used3.On the handle, the screwdriver rod automatically rotates to achieve the effect of tightening or tightening the screw, faster than other screwdrivers. These spiral ratchet models make it easier on your wrist and let your wrist rest.4.There are 3 modes adjustable: twist, turn and fix, easy to use. Suitable for all occasions.5.Comfortable grip, convenient and practical.Notice:Actual color may be slightly different from the image due to different monitor and light effectPlease allow 1-3mm deviation due to manual measurement Description:Dimensions: 29*217mm (wood handle), 34*220mm (plastic handle);Weight of wooden handle: 149gPlastic handle weight: 129g