RUKO SPB-DIN338-12,1 mm valssattu kierrepora HSS-R

Twist drill bit with 12.1 mm diameter, manufactured from roll-forged high-speed steel (HSS-R) to DIN 338. The black oxide finish reduces friction and improves chip flow in general-purpose drilling.

Advantages

Roll-forged HSS-R provides a tough, wear-resistant cutting edge for consistent performance. The 118° point angle and right-hand spiral flute ensure efficient material removal and self-centering on a wide range of materials.

Suitable for

• Steel
• Cast iron
• Non-ferrous metals
• Plastics
• Wood

Key specifications

• Diameter: 12.1 mm
• Overall length: 151 mm
• Flute length: 101 mm
• Shank: cylindrical, 12.1 mm
• Standard: DIN 338
• Material: HSS-R (roll-forged high-speed steel)
• Point angle: 118°
• Cutting direction: right-hand
• Tolerance: h8
• Surface finish: black oxide

Recommendations

Use with a suitable drill chuck and appropriate cutting speed for the workpiece material. Apply cutting fluid when drilling steel to extend tool life.