1/2" HSS Cobalt Drill Bits 5PCS with Three Flute for Hard Metal, Stainless Steel

🧿UNIQUE 3X FLUTE DESIGN - Lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling experience. 🧿4X LIFESPAN MATERIAL - Made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100 degreeF. 🧿MULTIPLE APPLICATION - Ideal for drilling in heavy-duty tough metal, including hard abrasive alloy metal, hardened stainless steel or cast iron. 🧿SMOOTHLY DRILLING - 135-degree split point tip & twist design increases cutting speed with self-centering and prevents skating starts or walking. 🧿1/2" COBALT DRILL BIT - Round straight shanks, include 5 pack 1/2-inch diameter hss drill bit with well organized clear ps case.