StarMax , Iran

Star Max cobalt drill bits are made from HSS-E steel with 5% cobalt. This composition maintains 64-66 Rockwell C hardness under heavy-duty operations. Standard diameters range from 0.5 to 13 mm in 0.05 mm increments. Overall length is designed from 38 to 151 mm based on diameter. The 118-degree point angle is optimized for fast penetration and general-purpose use. A super diamond-finished polish creates a highly smooth, wear-resistant surface. These bits are suitable for a wide range of materials including mild steel, cast iron, aluminum, and plastic. Recommended rotational speed varies from 1000 to 3000 RPM depending on diameter.

The bit structure features two spiral flutes with a 35-degree helix angle. This angle provides excellent balance between aggressive cutting and smooth chip evacuation. The precisely ground and symmetrical point starts cutting without a pilot hole. The body is finished via centerless grinding for a diameter tolerance under 0.02 mm. These bits are suitable for use in hand drills, pillar drills, and CNC machines with standard coolant. Effective drilling depth can reach 10 times the bit diameter in most materials. Shock and moisture-resistant packaging ensures a shelf life exceeding 5 years. The product holds ISO 9001 and DIN 340 certifications.You can order and buy StarMax from Iran by contacting us through whatsaap and email.
WEBSITE: StarMax Iran