Upgrade your EDR-210 or EDR-260 to a keyless chuck (99944900320) to quickly change from one drill auger to the next with ease. Lose the frustration and save yourself time by making this simple replacement. The keyless chuck is rust & weather resistant, accepts up to a 1/2" drill shank and requires no extra tools to lock in the drill bit. ECHO engine drill accessories are engineered to fit ECHO engine drills.