Vertical 9:16 ultra-realistic smartphone video, 4K resolution, no flicker, no motion blur.
Professional multi-scene montage showcasing a step drill bit set (exact shape and proportions, no deformation).
Scene 1 (Hook, macro): Extreme close-up of a step drill bit tip touching a thin steel sheet, shallow depth of field, crisp engraved size markings clearly visible.
Scene 2 (Action): An American male professional tradesman (30s–40s) operating a cordless drill. The step drill bit smoothly drills through sheet metal in one continuous motion, clean circular hole, no shaking.
Scene 3 (Detail): Slow push-in shot of the stepped edges cutting through aluminum, metal shavings curling cleanly, sharp focus on each step level.
Scene 4 (Comparison): Quick cut — traditional twist drill bit struggles and chatters, then immediate cut back to the step drill bit finishing the hole effortlessly.
Scene 5 (Usage range): Fast cuts drilling different materials — steel plate, aluminum sheet, plastic panel — same step drill bit, consistent clean holes.
Scene 6 (Professional layout): The full step drill bit set placed neatly inside its case on a workbench, top-down shot, studio lighting, premium tool aesthetic.