Bohrer BitSet DC18 — 6–60 mm Cobalt-Tipped Step Drill Bit (12-Step) Why this tool matters Covers a wide hole range (6–60 mm) in a single bit, so you can step up hole sizes without swapping tools. Cobalt-tipped cutting edges provide increased wear resistance and longer life when working with tougher materials. Spiral nut helps eject chips and prevents clogging for smoother, safer drilling. Triangular handle offers a secure grip and better control during operation, reducing wobble and improving accuracy. Key features and benefits Diameter range: 6–60 mm in 12 incremental steps — precise, progressive hole enlargement in one pass. Materials: Designed for metal sheet, PVC sheet, and wood processing — versatile for multiple jobs. Construction: Cobalt-tipped drill tool for improved cutting performance and durability. Chip management: Spiral nut design clears shavings during drilling to maintain cutting efficiency. Ergonomics: Triangular handle for easy gripping and stable operation, improving user control and safety. Model: DC18 — a reliable option for general drilling tasks that require stepped holes. How it solves common problems Saves time and reduces bit changes by covering many hole sizes with one tool. Minimizes rework and rough edges with progressive, controlled hole enlargement. Cuts through metal, PVC, and wood more reliably thanks to the cobalt tip and chip-clearing spiral. Improves handling and accuracy with the triangular handle, especially when starting holes or working in tight spots. Practical use scenarios Installing cable passes or conduit through metal panels: punch the initial hole and step up to the final diameter without changing bits. Mounting fixtures in PVC panels or plastic housings: create clean, incremental openings to match fastener diameters. Woodworking tasks such as making large-diameter openings for dowels or pipes: control hole size gradually to avoid splintering. Specifications at a glance Brand: Bohrer Model: DC18 Type: BitSet step drill bit Diameter range: 6–60 mm Steps: 12 Tip/material: Cobalt-tipped drill tool Design features: Spiral nut for chip removal; triangular handle for grip and control Suitable for: Metal sheet, PVC sheet, wood processing Use this Bohrer DC18 step drill when you need a durable, all-in-one solution for progressively enlarging holes in metal, PVC, or wood with better chip control and handling.