45 Piece Metric Tap and Die Set is a set of threading tools used to cut metric threads on bolts, rods and other metal parts. Taps are tapered tools that are inserted into a pre-drilled hole and turned to cut threads inside the hole. Dies, on the other hand, are cylindrical tools that are used to cut threads on the outside of bolts or rods.
The 45-piece metric tap and die set includes a range of metric tap and die sizes to meet a variety of threading needs. Metric tap and die sizes are measured in millimeters and generally include common sizes such as M3, M4, M5, M6, M8, M10, M12, M14, M16, M18, M20, M22, M24, M27, M30, M33, M36, M39 and M42.
This tool set is commonly used in auto repair shops, general mechanic shops, manufacturing plants and construction industries. It is also used by DIYers and mechanical enthusiasts for DIY and home repair projects.