10-Pack 7mm Cobalt HSS Drill Bits – M35 Steel for Drilling Stainless Steel & Hard Metals

For jobs that demand strength and precision, standard drill bits often fall short. Elevate your toolkit with this 10-pack of 7mm Cobalt HSS Drill Bits, specifically engineered to power through the most demanding materials with ease. This set is the reliable choice for professionals and dedicated DIYers who are tired of bits that dull, break, or overheat when tackling tough metals.

The exceptional performance of these bits comes from their superior construction. They are crafted from M35 High-Speed Steel (HSS) that is alloyed with 5% cobalt. Unlike simple coatings that wear away, the cobalt is integrated throughout the entire steel structure, providing outstanding heat resistance and hardness. This means the bit maintains its sharp cutting edge even under the extreme temperatures generated by drilling into stainless steel, cast iron, titanium, and other abrasive alloys. The result is a significantly longer tool lifespan, saving you time and the cost of frequent replacements.

Accuracy is crucial, and the 135-degree split-point tip on each bit ensures you hit your mark every time. This design feature allows the bit to engage the material immediately without “walking,” eliminating the need for a center punch and guaranteeing a clean, precise start. The optimized flute geometry works to efficiently clear chips and debris from the hole, which reduces friction and heat buildup, leading to a smoother and faster drilling process.

This set is an excellent value, providing ten high-performance bits to ensure you’re always prepared for the next task. The key specifications include:

• Diameter: 7mm
• Total Length: 133mm
• Usable Flute Length: 87mm

All ten bits are housed in a durable plastic case for convenient storage and transportation. This keeps your bits organized, protected from damage, and ready to go wherever the job takes you. Whether you’re working on metal fabrication, automotive repairs, or any project involving hardened materials, this drill bit set delivers the dependable power and precision you need.