Sada stupňovitých vrtákov Bosch HSS s 3-plošným stopkou pre hliník, plast

HSS-AlTiN step drill bit allows smooth drilling of several diameters with a single bit. Made of high-speed steel (HSS) and coated with aluminium titanium nitride (AlTiN), the bit is designed for extended life when used with coolant. Laser-marked diameter figures are placed in both spiral flutes for clear and durable identification.

Advantages

The set contains three HSS step drill bits with a 3-flat shank for secure grip in chucks and holders. AlTiN coating increases wear resistance and heat tolerance, while the HSS core ensures toughness and reliable cutting. Laser-etched diameter markings make it easy to select the required hole size without additional measuring.

Suitable for

• Aluminium
• Non-ferrous metals
• Plastic
• Sandwich materials and composite panels

Key specifications

• Brand: Bosch
• Material: HSS (high-speed steel) with AlTiN coating
• Shank type: 3-flat shank
• Set contents: 3 step drill bits
• MPN: 2608588069
• EAN: 3165140666497

How to use

Clamp the 3-flat shank securely in the drill chuck or holder. Start drilling at low speed to locate the hole, then increase speed according to material and bit size. Use coolant or cutting fluid to reduce heat and extend tool life, especially when working with metals. Apply steady, moderate feed pressure and withdraw occasionally to clear chips.

Recommendations

Use a lubricant or coolant for best lifetime and performance when drilling metals; for plastics, reduce speed to avoid melting. Always wear appropriate eye and hand protection and follow the drill machine manufacturer's safety instructions.