drill bits & sets
irwin unibit 15102 tin coated step drill bit 3 16 1 2 in
tin coated step drill bit size 3 16 1 4 5 16 3 8 7 16 1 2 in . shank size 1 4 in . number of hole sizes 6 step thickness 1 16 in br b features b ul li finish tin coated li li includes li li item step drill bit li li material high speed steel li li size 3 16 to 1 2 li li number of hole sizes 6 li li step thickness 1 16 li li shank size 1 4 li ul
irwin unibit