Kit Contains: Threaded Insert Tool x 1. Interchangeable Mandrels x 6. M3, M4, M5, M6, M8 & M10. Multi functional spanner x 1. Easily sets up to M10 Nutserts with more power and less effort than traditional Insert Tools. Creates a strong, permanent and reliable threaded fixing for use with bolts, studs and screws etc. Ideal for inserting threaded nuts into steel, aluminium, plastic and wood. Suitable for steel, stainless steel and aluminium nutserts. Small and compact, ideal for restricted areas. Steel body, Chrome Molybdenum alloy steel mandrels and reinforced 2mm heat treated Carbon steel handles for strength and durability. Features a knurled carbon steel knob to easily unload nutserts. Ergonomic handles for extra comfort. Requires access to only one side of the workpiece. Colour coded mandrels for easy selection.