DIY watch repair tool hand high speed wire attack kit.lightweight, portable and safe.Multi-coated optical light transmission and brightnessTap wrench handle can be separated into two segments, can be firmly set tight clamp the screw extractor, remove the damaged screws, , etc.Perfect for repairs and mechanically specified metric threading.Standard: MetricTap size: M1, M1.2, M1.4, M1.6, M1.7, M1.8, M2, M 2.5, M 3, .5Tap Handle: M1-M8Number of Threads Per Inch: 0.01Application: Woodworking / MachineryInstructions: When the due to corrosion and other reasons, in accordance with the bolt diameter of appropriate specifications of the drill in the center of the broken boltsdrilling a hole, then select the corresponding screw extractor to insert, with winder or wrench counterclockwise. Will be to remove the . In addition, inner hex (or outer-hexagonal) bolt's six hexagon head screw have loosen failure, also can be in this way.Material:metalcolour:SilverPackage Contents:10 * Screw Taps1 * Tap Wrench HandleOnly 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.