Item description for Drill Bit Set, 29PCS High Speed Steel M2 Drill Bits for Metal & Steel with Black

Assortment of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments.
CORTOOL High-speed steel (HSS) material provides hardness for wear resistance.
Black and gold oxide finish resists corrosion and increases the hardness of the drill bit. Heavy duty and durable twist drill bits set by CORTOOL.
Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging.
CORTOOL Jobber Drill Bits Set comes in a durable, sturdy & professional storage case. B0BD3MQNKV