Greycore Tools 3/8 Inch x 12 Inch Cobalt Aircraft Extension Bit – M35

Includes: 1 – 3/8 Inch x 12 Inch Cobalt Drill Bits These cobalt drill bits are designed for long lasting durability and performance, ensuring fast and easy penetration through many different materials. Heavy-Duty Material: Our drill bits for hardened steel feature a heavy-duty construction made with M35 cobalt (5% cobalt) and an industrial strength titanium coating, which provide excellent durability and superior resistance against abrasion and high heat. Split Point Tip: These cobalt drill bits feature a 135 degree split point tip that prevents slipping and can help increase drilling speed while ensuring smooth and easy penetration. Compatible Materials: Hard metals, stainless steel, cast iron, steel, titanium alloy, hard plastics, wood and more, and a wide range of applications such as repair, construction, or woodworking.