When the wings hit the metal they will break off to permit the thread to self tap into the metal

Large Bin (x15)

Sealey Premier™ Steel Body Combination Padlock Long Shackle 62mm

Tool Tray with 15pc Impact Socket and Adaptor Set

Makita Drill Bit Set Nemesis II SDS+ Plus 5.5-8mm Stone Concrete Brick Type_Paint Preparation Tools When the wings hit theMakita SDS+ Nemesis II Drill Bit Set With uniquely symmetrical shape, geometry ensures precision drilling Nemesis bits last longer. They will drill up to 50% more holes than normal rotary hammer drill bits Drilling into reinforced concrete is no longer a hit and miss application, reinforcing bar being no obstacle for the Nemesis bits Also perfect for use in the hardest of natural stone Nemesis II drill bits provide better breaking strength and