Collated WingTip S/DRILL Zinc_x000D_
Specifically designed to attach wood to metal (Max. 4.0mm). Coarse self-tapping thread with wings designed to ream out the timber, this helps the screw achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal. The collated strips are specifically designed to be compatible with all leading power tool brands.