DIY watch repair tool hand high speed wire attack kit. lightweight, portable and safe. Multi-coated optical light transmission and brightness Tap wrench handle can be separated into two segments, can be firmly set clamp the screw , remove the damaged screws, bolts, etc. Perfect for repairs and mechanically specified metric threading. Standard: Metric Tap size: M1, M1.2, M1.4, M1.6, M1.7, M1.8, M2, M 2.5, M 3, .5 Tap Handle: M1-M8 Number of Threads Per Inch: 0.01 Application: Woodworking / Machinery Instructions: When the bolts due to corrosion and other reasons, in accordance with the diameter of appropriate specifications of the drill in the of the broken boltsdrilling a hole, then select the corresponding screw to insert, with winder or wrench counterclockwise. Will be to remove the bolts. In addition, inner hex (or outer-hexagonal) 's six hexagon head screw have loosen failure, also can be in this way. Material:metal colour:Silver Package Contents: 10 * Screw Taps 1 * Tap Wrench Handle Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.