Exact-3-piece-HSS-Ti ALN-Ti N-Industrial-Step-Drill-Sets-Exact-05351-p-High-grade-industrial-quality-Ideal-for-sheet-metal-processing-in-cars-machines-&-sanitary-areas-This-Exact-3-piece-Ti N-Step-Drill-Set-is-ideal-for-burr-free-drilling-&-reaming-of-sheet-metal-pipes-&-profiles-p-Exact-05351-HSS-Ti N-Step-Drill-Set-4-12-4-20-6-30mm