Lazer Drill Unit - 10"Drill units include: blade(s), blade guard, collar bolt, and Allen wrench.Features:Drill UnitBlade(s)Blade GuardCollar BoltAllen WrenchWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.