For Standard Boring two Standard Insert Holders are set to identical dimensions both radially and axially.
The insert holders can be set to cut the same diameter, which permits machining twice as fast as conventional boring. Diameter changes are quickly made by adjusting screws which provide lateral movement of the insert holder.
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For Step Boring arrangement on Standard Insert Holder and one Step Insert Holder are required. The Step Boring Insert Holder will set up approximately .028”/0.7mm behind the standard (Lead) Insert Holder.
The leading insert cuts at one diameter and the following insert cuts a larger diameter.
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