Engineered for extreme strength and durability. Made from proprietary steel and heat treated to control hardness. 135 degree split point to start on contact and eliminates walking. Features the Thunderbolt web for durability and chip removal paired with taper-fit construction for a stronger bit with less wobble. 1/4'' hex shank.

WARNING: This product is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.