RUKO STB-HSS-TiN broca escalonada 6,0-26,75 mm, 12 escalones, HSS con recubrimiento de nitruro de titanio

Step drill bit for precise, burr-free drilling in thin materials up to 4 mm thickness. The cross-ground point ensures self-centering without a pilot hole, while the TiN coating reduces friction and increases tool life.

Advantages

12 cutting steps from 6.0 to 26.75 mm in one tool eliminate bit changes. The titanium nitride coating provides high surface hardness and corrosion resistance. The 3-flat shank prevents slipping in the drill chuck.

Suitable for

• Steel sheets and thin metal plates
• Non-ferrous metals such as aluminium and copper
• Plastics and composite panels
• Deburring existing holes

Key specifications

• Material: High-speed steel (HSS)
• Coating: Titanium nitride (TiN)
• Diameter range: 6.0 - 26.75 mm
• Number of steps: 12
• Shank diameter: 10 mm with 3-flat drive
• Total length: 100 mm
• Working length: 70 mm
• Point angle: 118°
• Cutting direction: Right-hand
• Max material thickness: 4 mm

Recommendations

Use cutting oil or coolant when drilling steel to extend tool life. For clean holes, start at low speed and increase gradually.