Bosch 1/2 in. Titanium Countersink Drill Bit
The self-starting point and five-fluted design on the Bosch 1/2 in. Titanium Countersink allow it to make clean, accurate cuts in even the toughest materials. It leaves smooth, burr-free edges on soft metal, steel, iron, wood and plastic with an 82-degree chamfer that creates a snug resting place for countersunk screw heads. Constructed with high-speed steel and coated with super-hard titanium, this bit has the durability to withstand high-heat conditions for lasting use.