drill bits & sets
irwin unibit 10239cb cobalt step drill bit 7 8 to 1 1 8 in
step drill bit size 7 8 to 1 1 8 in . shank size 7 16 in . number of hole sizes 2 step thickness material cobalt design includes br b features b ul li includes li li item step drill bit li li material cobalt li li size 7 8 to 1 1 8 li li design li li number of hole sizes 2 li li step thickness li li shank size 7 16 li ul
irwin unibit