Toolholding Systems

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 effi ciency and accuracy, the following toolholding systems are your best choices:

First ChoiceSecond ChoiceThird Choice
Hydraulic chucksShrink FitHigh-performance milling chucks

with reduction sleeves

Not Recommended Clamping Chuck Highly Recommended

Use of all-purpose drilling chuck collets, Hydraulic chucks ensure a secure torque clamping sleeves, and Weldon® clamping transmission with excellent concentricity. chucks should be avoided because they do not absorb cutting forces reliably and provide insuffi cient precision of concentricity.

Not Recommended Machine Rigid Machine Tool Recommended

Solid carbide drills have a much higher rigidity than conventional high-speed steel drills. This enables the machining of close-tolerance holes with a position accuracy of ±0.025mm. However, it also means that drills require rigid machine tools with good spindles.

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