drill bits & sets
irwin unibit 10234cb cobalt step drill bit 3 16 7 8 x 1 16
cobalt step drill bit size 3 16 1 4 5 16 3 8 7 16 1 2 9 16 5 8 11 16 3 4 13 16 7 8 in . shank size 3 8 in . number of hole sizes 12 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 3 16 to 7 8 li li design li li number of hole sizes 12 li li step thickness 1 16 li li shank size 3 8 li ul
irwin unibit