DrillHulk cobalt M35 drill bits are made from high-speed steel and 5% cobalt.
The addition of cobalt improves strong durable performance in harder materials especially stainless steel.
Made in China
You Will Get:
12 pieces of 3/16-Inch. x 3-1/2-Inch. cobalt drill bits with case
Notice:
For high-speed drilling through metal, lubricate the bit with lightweight oil.
Warning:
Drill bits can shatter during use.
Always wear safety goggles and safety items when drilling.