All necessary bit holders for many applications
Set contains 3/8" dr. x 1/4" hex impact locking bit holder, 3/8" dr. x 5/16" hex impact locking bit holder, 1/4" dr. x 1/4" hex power bit holder, 3/8" dr. x 5/16" hex bit holder, 1/4" dr. x 1/4" hex bit holder, 3/8" dr. x 1/4" hex bit holder
Packaged on purple magrail