RUKO SPB-DIN1897-HSSCo-Ø7,5mm extra korte spiraalboor

Extra short twist drill bit with 5% cobalt high-speed steel for precise drilling in tough materials. The 130° split point self-centers and reduces thrust pressure, while the fully ground bright finish ensures clean chip evacuation and high heat resistance.

Advantages

High cobalt content provides superior hardness and heat resistance for demanding applications. The extra short design offers maximum stability and reduced deflection, ideal for portable drills and tight spaces. Split point geometry allows accurate starting without a center punch.

Suitable for

• High-alloy steels
• Stainless steel
• Cast iron
• Bronze
• Hard plastics

Key specifications

• Diameter: 7.5 mm
• Overall length: 69 mm
• Working length: 36 mm
• Point angle: 130°
• Shank: cylindrical, 7.5 mm
• Material: HSS-Co (5% cobalt)
• Standard: DIN 1897
• Tolerance: h8

Recommendations

Use with cutting oil on hard metals to extend tool life. Ensure the workpiece is securely clamped. For best results, drill at moderate speed and feed pressure.