Drill Bit for Metal Smart HSS cylindrical 3.1 mm set of 10 (model 11-031)

Smart cylindrical HSS drill bit set, 3.1 mm diameter, 10 pieces, designed for drilling metal and other hard materials. These high-speed steel (HSS) bits are engineered to withstand the heat and wear associated with cutting steel, iron and non-ferrous metals. The straight shank design fits standard chucks on handheld drills and drill presses, making the set suitable for workshop, maintenance and fabrication environments.

Advantages

The HSS construction provides good hardness and heat resistance for sustained drilling in metal. A consistent 3.1 mm diameter across all ten bits ensures repeatable hole sizing and reduces the need for frequent tool changes. The cylindrical shank offers compatibility with most chucks and simple installation. The set format supplies spare bits for multi-step projects or for replacement when wear occurs.

Suitable for

• Drilling holes in steel and iron components
• Working with non-ferrous metals such as aluminum and brass
• Workshop repairs and maintenance tasks
• Use with handheld drills and drill presses
• Small fabrication and assembly jobs requiring consistent hole diameter

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical (straight) shank compatible with standard chucks
• Diameter: 3.1 mm
• Quantity: 10 pieces per set
• Intended materials: ferrous and non-ferrous metals

How to use

Secure the chosen 3.1 mm drill bit in the drill chuck and tighten firmly. Mark the drilling point on the workpiece and, if needed, use a center punch to prevent bit wandering. Select an appropriate drilling speed for the metal being drilled—slower speeds for harder steels and higher speeds for softer non-ferrous metals. Apply steady, even pressure and use cutting fluid or lubricant to reduce heat and improve tool life. Withdraw the bit occasionally to clear chips and avoid clogging.

Usage recommendations

For best results, use lubricant when drilling stainless steel or other hard alloys, and reduce speed to minimize overheating. Replace bits when wear or chipping is visible to maintain hole quality and to prevent workpiece damage.