Precautions for use:One, install correctlySecond, the tap chuck of this product is only suitable for installing machine taps (the taps have extension taps and manual taps. The main point is that the square size of the tail is different, which will cause the size of the chuck to be incompatible. So while choosing the taps , Use the machine tap according to whether the chuck is a machine chuck)Product parameters:Product size: 20*19cm(7.87*7.49inch)Product net weight: 1.45kg (3.2lb)No-load speed: 400 r/minTapping ability: M3-M12Air pressure: 0.4-0.7mpa Air consumption: 0.46 cubic meters/minAir inlet: 1/4LNFeatures: Suitable for handheld work, can tap steel/castings, often used to tap M3-12Send six tap chucks: M3, M4, M5, M6-8, M10, M12.Features:1. Fast tapping, high work efficiencyCan tap M3-12. Easy to operate6 tapping chucks of different sizes (M3-M2) to meet various needs.3. The chuck is stable, not afraid of the tap falling off, safe to use!4. Forward and reverse switchSupport forward and reverse, F button is forward, R button is reverse5. Silenced exhaust valve6. Ergonomically designed handleThe handle is ergonomically designed and comfortable to hold, suitable for long-term operation and beautiful appearance!usage notice:Due to transportation restrictions, pneumatic oil cannot be delivered to you. Before using this tapping machine, please add some machine oil (sewing machine oil, pneumatic oil, etc.) to the air inlet to prolong the service life of the machine and prevent it from rusting.Package Included :1 x handheld tapping machine6 x chuck