RUKO SPB-DIN338-HSS-TiN τρυπάνι στριφτό 7,2 mm

Twist drill bit with 7.2 mm diameter, ground from solid HSS and TiN-coated for high wear resistance. The gold titanium nitride surface reduces friction and heat build-up, extending tool life in steel, cast iron, and non-ferrous metals.

Advantages

TiN coating provides a hard, low-friction surface that improves chip evacuation and allows higher cutting speeds. The DIN 338 geometry with 118° point angle and right-hand cutting ensures precise centring and round holes.

Suitable for

• Steel up to 900 N/mm²
• Cast iron
• Non-ferrous metals
• Plastics
• Wood

Key specifications

• Diameter: 7.2 mm
• Total length: 109 mm
• Working length: 69 mm
• Shank: cylindrical, 7.2 mm
• Point angle: 118°
• Flute type: right-hand cutting
• Tolerance: h8

Recommendations

Use with cutting oil or coolant when drilling steel to maximise tool life. For best results, pre-punch or centre-drill on hard materials.