RUKO punta a gradini HSS 8-22 mm, 15 gradini, gambo 10 mm, DIN 1412 C

Step drill bit made of high-speed steel (HSS) for drilling, deburring, and reaming in one operation. Covers diameters from 8.0 mm to 22.0 mm in 1.0 mm increments across 15 steps, with a maximum material thickness of 4 mm per step.

Advantages

Self-centering point and spiral flute design ensure clean, precise holes in thin-walled materials. Bright uncoated surface reduces friction and allows easy chip evacuation.

Suitable for

• Sheet metal
• Non-ferrous metals
• Plastics
• Thin-walled materials up to 4 mm thickness

Key specifications

• Material: High-speed steel (HSS)
• Drilling diameter range: 8.0 - 22.0 mm
• Number of steps: 15
• Step increments: 1.0 mm
• Step thickness: 4 mm
• Shank type: Cylindrical
• Shank diameter: 10 mm
• Overall length: 90 mm
• Point angle: 118°
• Flute type: Spiral flute
• Surface treatment: Bright (uncoated)
• Cutting direction: Right-hand cutting
• Standard: DIN 1412 C
• Product series: RUKO 101052
• Coolant compatibility: Suitable for use with cutting oil/coolant

Recommendations

Use with cutting oil or coolant for extended tool life. Ideal for electricians, plumbers, and metal fabricators working with sheet metal and thin profiles.