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WIDIA-Hanita-Rübig Products - 496 / 614 Pages

WID_HAN10_E012_E013_METRIC.qxp:WIDIA

10/19/09

10:22 AM

Page E12

Technical Information
Solid Carbide Drills • General Application Instructions
Toolholding Systems

Technical Information

As with any drilling system, components of the entire system contribute to the quality of the machined hole, not just the drill itself.
For maximum efficiency and accuracy, the following toolholding systems are your best choices:

First Choice

Second Choice

Third Choice

Hydraulic chucks

Shrink Fit

Powergrip milling chucks with collets

Not Recommended

Clamping Chuck

Highly Recommended

Use of all-purpose drilling chuck collets,
clamping sleeves, and Weldon clamping
chucks should be avoided because they
do not absorb cutting forces reliably nor
provide sufficient precision of concentricity.

Hydraulic chucks ensure a secure torque
transmission with excellent concentricity.

Machine

Rigid Machine Tool Recommended

Not Recommended

Solid Carbide Drills have a rigidity five times
higher than conventional High-Speed Steel
Drills. This enables the machining of closetolerance holes with a position accuracy
of ± .001. However, it also means that
drills require rigid machine tools with
good spindles.

E12

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Text version

All Widia Manchester catalogues and technical brochures

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