Zhuzhou Weikeduo Cemented Carbide Co., Ltd.
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TH-TB Series Solid Carbide End Mills Silver Color For Metal Drilling
Solid Carbide NC Sporting Drill / Center drill bit
Speciafication and Feature
1. Self feeding screw point provides fast boring in hard and soft woods, for precise and easy drilling.
2. Solid center design provide extre rigidity and excellent chip-carrying capacity.
3. Wide lands keep the bit straight as it bore through the hole.
4. Strict standard for consistent quality assurance.
Fixed-point drilling plays the role of fixing the location of holes. Hardware sells almost as much as central drilling. The front end is small as the drill bit, and the back end is angular as the drill bit; it has the function of positioning and chamfering.
Some are just a factory term, mainly in order to facilitate the location of drilling holes and drill small holes in advance in the location where the need for drilling holes, fixed-point drilling is usually used in the center of the drill, may also be small diameter of the bit.
Central drilling is the function of restricting the location of holes in case of drilling deviation.
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