Back boring is available to optimise opposing bore concentricity
Back boring from the same direction greatly improves the concentricity. Simply reversing a standard Insert Holder readies the tool for back boring, retaining all the same features such as simple and accurate diameter adjustment.
Quick adjustment within micron tolerance
Completes boring operation and undercut
No radius at the bottom corner. Ideal finish for bearing seats and cylinder for piston. Easy attachment with standard EWN Boring Head.