Machine tools and equipment straight flute drill close relationship, straight flute drill on the choice we need to pay attention to what? Some important relationships you need to know.

Rigid straight flute drill speed number,
   (1) and drill carbide materials, surface coatings and so on.
   (2) with the silicon content of the workpiece material, surface treatment and so on.
   (3) permits the use of the machine speed, spindle runout, drill holding method, the rotation system balancing status.
   (4) the specific value depends on the drill recommended by the manufacturer.
   (5) In practice, we generally recommend 100 to 200 m / min, to watch for gradual adjustment.
7. Feed and what amount of:
   (1) related to the diameter of the drill bit.
   (2) the bit length.
   (3) cooling the way.
   (4) the specific value depends on the drill recommended by the manufacturer.
   (5) In practice, we generally recommend about 1/1000 of the diameter of the drill bit, to watch for gradual adjustment.

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