Threading Technology – Clamping Technology 520

422 Twist Drills VA STEEL Accessories 3 x D 5 x D 6 x D Tech. Info v c / f Product Finder 8 x D 2-3.5 x D 5.5 Workpiece clamping Basic conditions for the use of twist drills: • The workpiece must be firmly supported, without a chance to bounce or bend • Additional support points will help • With thin-walled workpieces, feed must be reduced Solid carbide twist drills are extremely sensitive to bending stress! Wrong workpiece clamping Correct workpiece clamping