Deli Step Drill Bit (4-20mm) - ريشة بلبل

Product Description

This versatile 4 mm–20 mm step drill bit is designed to drill multiple hole sizes with a single tool—ideal for sheet metal, aluminum, plastic, and thin steel. Its stepped design eliminates the need to swap bits, while the spiral flutes and self-starting tip ensure clean, burr-free holes every time. Crafted from high-speed steel (HSS) and finished with black oxide or optional TiN coating, this bit is built for longevity and performance in both professional and DIY settings.

Key Features

• Hole Size Range: 4 mm to 20 mm by 2 mm steps—drill nine hole sizes with one bit

• Material:

  • High-Speed Steel (HSS) for hardness and wear resistance

  • Black oxide finish reduces friction and prevents corrosion

  • Optional titanium (TiN) coating for longer life and cooler drilling

• Shank: 1/4" hex shank or 8 mm round shank with 3-flat grip—prevents slipping and works in impact drivers or drills

• Tip Design: Self-starting, split-point tip prevents wander and pilot drilling

• Flutes: Spiral or dual-flute design improves chip evacuation and drilling speed

• Finish: Laser-etched size markings for quick hole identification

Int code: C3