6.5mm M35 Cobalt HSS Drill Bit Kit (10 Pcs) – High Heat Resistance for Cast Iron & Tough Alloys

When your project involves drilling through unforgiving materials like cast iron, stainless steel, or hardened alloys, you need a tool that’s built for the challenge. This 10-piece kit of 6.5mm M35 Cobalt HSS drill bits is engineered specifically for those high-stress applications where standard bits would quickly fail. It’s the perfect solution for metalworkers, mechanics, and fabricators who demand precision and durability.

The exceptional strength of these bits comes from their M35 High-Speed Steel composition, which is enriched with a 5% cobalt alloy. This isn’t just a surface treatment; the cobalt is integrated throughout the entire structure of the steel. The primary benefit of this is superior heat resistance, allowing the bit to maintain its hardness and razor-sharp cutting edge even at extreme temperatures. This durability ensures a significantly longer service life and consistent performance when drilling through tough, abrasive metals.

Precision is guaranteed thanks to the 135-degree split-point tip. This advanced design allows the bit to engage the material instantly without “walking” or slipping, eliminating the need for a center punch and ensuring your hole starts exactly where you want it. The bit’s flute geometry is optimized for efficient chip removal, which reduces friction and heat buildup, resulting in a cleaner, faster, and smoother drilling experience from start to finish.

This comprehensive kit provides outstanding value, ensuring you always have a reliable bit on hand. The technical specifications are tailored for effective performance:

• Diameter: 6.5mm
• Total Length: 133mm
• Usable Flute Length: 87mm

For your convenience, all ten bits are organized and protected in a durable plastic case. This keeps them secure in your toolbox, easy to identify, and ready for transport to any job site. Trust this kit to deliver the reliable, high-performance results you need for your most demanding metalworking tasks.