STROTON Metric 6% Cobalt Step Drill Bit for Stainless Steel and Hard Metal (4-32mm/15 Steps)

（Ⅰ）Product Advantages: (1) The “Cobalt” from STROTON ,Add enough rare metals from STROTON to ensure the quality.(2)This step drill bit is made of Premium Cobalt (80,000 dollars per ton). (3)This step drill bit works in materials such as sheet metal, ducts, steel, copper, brass, aluminum, plastic, vinyl siding, plasterboard, PVC, stainless steel and cast iron. （Ⅱ）Some Important Tips about drilling stainless steel and hard metal: &nbsp &nbsp (1)Running the step bit at Low Speeds and using a little appropriate cutting fluid (Drillling metal) will extend its service life. &nbsp &nbsp(2)Adding cutting fluid, engine oil or water to prevent the stainless steel from overheating and forming a very hard oxide layer also works adding some vinegar,soy sauce if you don’t have cutting fluid. &nbsp &nbsp(3)Cutting Thickness ___________________________________&nbsp &nbsp &nbsp Stainless Steel Sheet &nbsp&nbsp&nbsp&nbsp&nbsp ———————–&nbsp &nbsp &nbsp &nbsp &nbsp Hand Drill &nbsp &nbsp &nbsp ≤2mm &nbsp &nbsp &nbsp &nbsp &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp &nbsp &nbsp &nbsp &nbsp &nbsp Drill Press &nbsp &nbsp &nbsp ≤5mm &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp ___________________________________ &nbsp&nbsp&nbsp&nbsp Metal Sheet,Pvc,Woodboard and etc ————————————— &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp Hand Drill &nbsp &nbsp &nbsp ≤5mm &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp Drill Press &nbsp &nbsp &nbsp ≤5mm &nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp _____________________________________