Easy conversion-integral hex mount locks the Adapt-A-Drive chuck into the screwdriver bit socket
Ideal for use in starting screw holes for use in hard-to-reach spaces
0.250-inches hex mount and KG1 key number
1-1/8-inches sleeve diameter
Jacobs Chuck Adapt-A-Drive chuck. Easy conversion-integral hex mount locks the Adapt-A-Drive chuck into the screwdriver bit socket. Ideal for use in starting screw holes for use in hard-to-reach spaces. 0.250-inches hex mount and KG1 key number. 1-1/8-inches sleeve diameter. 0.028-inches minimum and 0.25-inches maximum capacity.