drill bits & sets
irwin unibit 10233cb cobalt step drill bit 1 4 3 4 in x 1 16
cobalt step drill bit size 1 4 5 16 3 8 7 16 1 2 9 16 5 8 11 16 3 4 to 3 4 in . shank size 1 4 in . number of hole sizes 9 step thickness 1 16 in br b features b ul li includes li li item step drill bit li li material cobalt li li size 1 4 to 3 4 li li design li li number of hole sizes 9 li li step thickness 1 16 li li shank size 3 8 li ul
irwin unibit