1/2" diameter, jig heavy duty high speed steel drill bit, hex shank for use with quick change chuck, also works with standard chucks, 1 piece, hardened steel, rugged design, for use with the kreg jig heavy duty, includes stop collar & allen wrench.
WARNING: Drilling, sawing, sanding or machining wood products can expose you to wood dust, a substance known to the State of California to cause cancer. Avoid inhaling wood dust or use a dust mask or other safeguards for personal protection. For more information go to www.P65Warnings.ca.gov/wood.