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ANSI Standard three flute countersink
![ANSI Standard three flute countersink ANSI Standard three flute countersink](https://image.seohost.cn/storage/6910/product/20190328/1553765439559010.jpg)
specification
ANSI Standard three flute countersink
The countersink follows ANSI standard
Made from M2 high speed steel or M35 5% cobalt high speed steel
Used for a variety of steels and non-metallic applications, used for countersinking for centers or enlarging existing hole
The countersink performance high feed rates