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Precision Tools - Nachi

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Guidance Broaches<br />

Guidance<br />

Terms<br />

Internal Broaches<br />

49<br />

Shank Diameter<br />

Pull End<br />

Types of Pull Ends<br />

Front Shank Length<br />

(1) Cotter Type (3) Threaded Type<br />

(2) Jaw/ Claw Type (4) Pin Type<br />

Roughing teeth<br />

Semi-finishing teeth<br />

Finishing teeth<br />

First Cutting Teeth<br />

Roughing Teeth<br />

Semi- Finishing Teeth<br />

Length of Cutting Teeth<br />

Overall Length<br />

Finishing Teeth<br />

Front Pilot Rear Pilot<br />

The cutting teeth to conduct main cutting.<br />

Types of Retriever Ends<br />

(1) RoundNeck Type<br />

(2) Jaw/ Claw Type<br />

The cutting teeth having small cutting amount to be arranged before the finishing teeth.<br />

(3) Trapezoid Type (Flat Type)<br />

Rear Shank Length<br />

Retriever End<br />

The cutting teeth to finishing the workpiece to the specific dimensions .<br />

These are constituted usually with several cutting teeth of the same dimensions. Further, the cutting teeth after second one are<br />

called also as preparatory teeth.

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