Drill bit for metal Smart HSS cylindrical 9.5 mm set of 5

Set of five Smart HSS cylindrical drill bits with a 9.5 mm diameter, designed specifically for drilling metal. These drill bits are made from high-speed steel (HSS) to deliver hardness and thermal resistance needed for continuous cutting in metalworking. The cylindrical shank fits standard chucks and bench drill machines, making the set suitable for both workshop and repair applications involving ferrous materials.

Advantages

The HSS material ensures good wear resistance and maintains cutting performance at elevated temperatures, reducing the risk of premature dulling during repetitive operations. A consistent 9.5 mm diameter across the set provides repeatable hole size and simplifies tool selection. The cylindrical shank offers reliable clamping in common drill chucks and pillar drills, providing stable rotation and accurate hole centering. The set of five spare bits gives multiple replacements for continuous work without frequent re-sharpening.

Suitable for

• Drilling holes in steel and cast iron
• Workshop maintenance and repair tasks
• Metal fabrication and prototyping
• Piercing ferrous sheets and plates

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 9.5 mm
• Shank type: cylindrical
• Quantity: set of 5 pieces
• Intended material: ferrous metals (steel, iron)

How to use

Select an appropriate drill speed for the diameter and material, clamp the cylindrical shank securely in the chuck, and use cutting fluid or lubricant when drilling harder steels to reduce heat and extend tool life. Start with a pilot hole if greater accuracy is required, apply steady feed pressure, and avoid excessive side loads. After use, clean chips from the flutes and store the bits dry to prevent corrosion.

Usage recommendations

For best results when drilling metal, use a suitable cutting lubricant, set drill speed according to material hardness, and replace or re-sharpen bits when wear affects hole quality. Ensure secure clamping of the workpiece and maintain a perpendicular drill axis to achieve precise holes.