Simple designed can improve the efficiency of processing thread, a necessary tool for hand tapping operation.With this tap and wrench set, the thread processing will become more easily and precisely.Perfect for auto repair and machinery where metric threads are specified.Allows you to remove bronken screws or bolts.Specification:Wrench Length: Approx. 19.5cm/7.68inchMain points of operation:1. The pit and hole must be chamfered first2. To use the screw thread tap correctly matching with drill clamp3. Keep vertical alignment operation4. Horizontally cutting into the wrench and rotating for 2-3 times5. To confirm whether it is vertical after cutting6. Tapping 3/4 turn and a quarter turn back7. Horizontally and reversally pull out after finishing tapping8. Remember that cutting metal needs to use the oilcolour: silverMaterial: steelPackage Contents:1 x M4x0.7 thread tap1 x M5x0.8 thread tap1 x M6x1.0 thread tap1 x M8x1.25 thread tap1 x M10x1.5 thread tap1 x M12x1.75 hand screw thread tap1 x adjustable tap wrenchOnly the above package content, other products are not included.Note: Light 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.