• Made of HSS-G high-speed steel.
• Stepped design for progressive drilling.
• Straight flutes for controlled chip evacuation.
• Precise cutting with good dimensional control.
• Visible diameter marking for quick identification.

The HSS-G step drill with straight flutes is a versatile solution with good performance and durability for routine work in sheet metal, designed to make progressive holes with a single tool.

Made of HSS-G high-speed steel, it allows diameters to be enlarged step by step, avoiding the use of multiple drills. The straight-flute design gives cutting stability and controlled chip evacuation in thin materials. Its stepped conical geometry aids initial centring and improves the hole finish, reducing burrs. It is designed to offer dimensional precision and repeatability in professional applications.

Technical specifications:
· Split Point cutting geometry to DIN 1412 C.
· Accurate centring and stable cutting start.
· CBN-ground with straight chip-evacuation flutes.
· Radially adjusted, CBN-ground steps.
· Laser-marked steps for controlled drilling.
· Suitable for sheet metal up to 4 mm thick.
· Bright finish.
· Cutting angle 118°.
· Cone angle 90°.
· Right-hand cutting.
· 3-flat shank.
· Controlled drilling with reduced vibration and burrs.
· Range: Perfect.
· Sales unit: plastic case.

Recommended applications:
· Main: steel, aluminium, nickel silver, PVC.
· Secondary: cast iron, bronze.