Product                                                                 Number       Description

14112      1/8" - 1/2", 3-flat 1/4" shank

15113      1/8" - 1/2", 1/4" hex shank

14114      3/16" - 7/8", 3-flat 3/8" shank

14134      3/16" - 7/8", 1/4" hex shank

14138      1/4 - 1-3/8", 3-flat 3/8" shank (Electrician Step                  Drill)