9/16 Drill Bit for Metal and Hardened Steel, M35 Cobalt 1/2 Inch Reduced Shank Industrial Grade Heavy Duty Drill Bit, with Index Storage Case

9/16 Drill Bit for Metal and Hardened Steel, M35 Cobalt 1/2 Inch Reduced Shank Industrial Grade Heavy Duty Drill Bit, with Index Storage Case

• Cobalt M35 Material: High cost, but hardness is up to 67, cut faster and has a long life, up to 12 times compared with the average HSS titanium coated bit
• Aluminum Titanium Nitrite Coating：Better resistance to high temperature and oxidation, resulting in longer bit life
• Heavy Duty 135 Degree Split Point: No need pilot hole and help reduce walking, remain better concentricity for precise drilling result
• Non-slip tri-flat Shank: Triple shanks have a tighter grip than round shank and are particularly suited to the machining of hard materials in industry
• Versatile Application: Ideal for drilling stainless steel, cast iron, steel plate, copper, aluminum, titanium，hardwood and so on
• Packaged properly: the bit are 9/16" diameter, 1/2 tri-flat shank, 6 inches in overall length, in a plastic storage case with a sticker indicating the size
• More suggestions: Use lubricant for cutting or cooling to make the cutting process easier, improve smoothness, and enhance dimensional accuracy. This can also help extend the service life of the tool, Usually no need special maintenance