Feb 21, 2005 08:27
19 yrs ago
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English term

Drill diameter points to type of drill

English Tech/Engineering Mechanics / Mech Engineering turning/parting/threading/grooving tools
I'm translating into Italian. Could you please explain the meaning/provide a synonym for "points to"??

Drill diameter points to type of drill
One of the first things to be established when choosing a hole-making tool is whether an indexable insert drill or a regrindable drill should be used. The diameter of the hole is the first factor. Indexable insert drills cannot be used for small diameter holes (smaller than 12 mm) so these applications need solid or brazed cemented carbide drills.
Small-diameter holes
Solid cmented carbide drills, such as the XXX, are available in different versions, covering a diameter range from 1.5 to 20 mm.
Where it is possible to machine at high spindle speeds the properties of cemented carbide should be utilized in order to achieve increased productivity. When the stability of the set-up is really poor, to the extent that it puts the relaibility of the carbide drill at risk, a high speed steel drill can be an alternative choice

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drill diameter determines the type of drill you can use

For holes smaller than 12 mm. you need solid drill, for larger holes you have the choice of indexable insert drills, which need a hollow for the inserts, etc.

You can also say that type of drill you can choose depends on the drill diameter.

HTH
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4 KudoZ points awarded for this answer. Comment: "grazie mille!!!"
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