RUKO BSB-HSS-TiN stappenboor 4-20 mm, 9 stappen, HSS met titaannitride-coating

Step drill bit for precise, burr-free drilling in thin materials up to 4 mm. The spiral flute and 118° self-centering point ensure clean, round holes in steel, stainless steel, non-ferrous metals, and plastics.

Advantages

TiN coating reduces friction and increases wear resistance. Two-flute design with 2 mm increments from 4 to 20 mm covers nine common diameters without tool changes.

Suitable for

• Steel
• Stainless steel
• Non-ferrous metals
• Plastics
• Thin sheets

Key specifications

• Drilling diameter range: 4.0 - 20.0 mm
• Number of steps: 9 (4, 6, 8, 10, 12, 14, 16, 18, 20 mm)
• Step increments: 2 mm
• Material: High-Speed Steel (HSS)
• Coating: Titanium Nitride (TiN)
• Shank type: Cylindrical, 10 mm diameter
• Total length: 75 mm
• Cutting edge length: 48 mm
• Flute type: Spiral
• Point angle: 118°
• Self-centering point: Yes
• Cutting direction: Right-hand
• Standard: DIN 1412 C
• Packaging: Plastic case

Recommendations

Use with cutting oil or coolant for longer tool life. Ideal for electricians, plumbers, and sheet metal workers.