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Drill bit is a rotating tool with cutting ability at the head end. It is generally made of carbon steel SK or high speed steel SKH2, SKH3 and other materials by milling or rolling and then quenched after grinding. It is used for drilling on metal or other mate...

Here's how to pick a bit based on three basic bits: material, coating and geometric features. 01, how to choose the material of the drill Materials can be roughly divided into three types: high speed steel, cobalt high speed steel and solid carbide. High speed...

1. Pour some lubricating oil, use a sharp chopper to knock out slowly on the fracture surface in reverse, and pour iron filings from time to time. This is a more common method in the workshop, but it may not be suitable for threaded holes with too small diamet...

As a common tool for processing internal threads, taps can be divided into spiral groove taps, edge inclination taps, straight groove taps and pipe thread taps according to their shapes. Divided into metric, American, and imperial taps. Taps are also the mains...

YUXIANG TOOLS has started to use a new technology for heat treatment since 2010. It is so called vacuum heat treatment. It mainly refers to a new type of heat treatment technology that combines vacuum technology and heat treatment technology. The vacuum enviro...