Drill bit set Smart HSS cylindrical 11 mm, 5 pcs (model 24-110)

Set of five Smart HSS cylindrical drill bits with an 11 mm cutting diameter designed for drilling through a variety of metals. These twist drill bits are made from high-speed steel (HSS) and have a straight cylindrical shank that fits standard drill chucks and many drill presses. The set is intended for workshop and light industrial tasks such as maintenance, fabrication and general metalworking where a reliable, wear-resistant cutting edge is required.

Advantages

High-speed steel construction provides good hardness and heat resistance for sustained metal cutting. The cylindrical straight shank ensures stable gripping in standard chucks and reduces runout in handheld drills and bench machines. Supplied as a five-piece set, the drill bits allow quick replacement when a bit becomes worn or when multiple holes of the same diameter are required. The 11 mm diameter is a common size for clearance and through-holes in structural and sheet metal applications.

Suitable for

• Drilling mild steel, stainless steel and other ferrous metals (with appropriate cutting speed and coolant)
• Workshop maintenance and repair tasks
• Metal fabrication, fitting and assembly
• Use in hand-held drills and drill presses with standard chucks

Key specifications

• Material: high-speed steel (HSS)
• Shank type: cylindrical / straight shank
• Diameter: 11 mm
• Quantity: 5 pieces
• Intended use: drilling in metal

How to use

Secure the appropriate drill bit in the chuck making sure the shank is fully seated and the chuck is tightened to prevent slipping. Select drill speed and feed appropriate for the workpiece material—lower speeds for harder steels and higher speeds for softer metals—and apply steady, even pressure. Use cutting fluid or coolant when drilling stainless steel or thick sections to reduce heat buildup and extend tool life. Clear chips regularly to avoid clogging the flutes and to maintain efficient cutting.

Usage recommendations

For optimal performance, match drill speed and feed to the metal type and thickness, use cutting lubricant for stainless and hardened steels, and replace bits from the set when signs of wear or chipping appear to maintain hole quality and tool safety.