Drill America #50 Cobalt Heavy Duty Drill Bit (Pack of 12), D/ACO Series

About this product

Drill America D/ACO series premium quality heavy duty jobber length drill bit. Manufactured to National Aerospace standard 907. Made of heat resistant cobalt steel, it displays higher red hardness which permits speeds upto 30 percent greater than High-Speed Steel drills and is especially effective in drilling tough, high tensile strength materials like PH stainless steel, inconel and titanium.