Detachable plunger, positive and negative adjustable. Metal shell, high hardness, durable, surface electroplating process. Designed for use with taps, it can also be used for left-handed taps, reamers, screw extractors and other square-handle tools. The adjustable T-shaped handle can "slide" from one side to the other to facilitate positioning and increase in narrow . switch from left-handed operation to right-handed operation, or lock for non-ratchet operation. Name:adjustable ratchet hand tap wrench Model:M3-M8 Colour:Silver Material:steel Package Contents: 1 * tap wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.