Drill bit Irwin Turbomax for metal 4.9 mm (10502217)

Irwin Turbomax drill bit for metal, 4.9 mm diameter, is a twist-drill designed for accurate holemaking in a wide range of ferrous and non‑ferrous metals. The 4.9 mm cutting diameter provides consistent pilot and fastener holes for workshop tasks and professional metalworking. The construction and geometry of the Turbomax series deliver high drilling speed and effective chip evacuation, suitable for use with handheld drills and drill presses.

Advantages

The drill bit combines a precise 4.9 mm diameter with a robust material and tip geometry that improve cutting performance and hole accuracy. Optimised flute design aids chip removal to reduce clogging when drilling into solid metal, while a balanced hardness and toughness profile increases resistance to wear during repetitive use. The bit is compatible with standard drill chucks and maintains concentricity for clean, round holes.

Suitable for

• Drilling pilot holes for fasteners in sheet metal and metal components
• Creating clearance holes for bolts and rivets in steel and aluminium
• General metal fabrication and workshop drilling tasks
• Use in handheld electric drills and drill press machines

Key specifications

• Cutting diameter: 4.9 mm
• Drill type: twist drill for metal
• Intended materials: ferrous and non‑ferrous metals
• Recommended mounting: standard drill chucks and drill press chucks
• Design features: optimized flute geometry for chip evacuation and concentric cutting tip

How to use

Secure the workpiece and mark the drilling location. Fit the 4.9 mm Irwin Turbomax bit firmly in the drill chuck, ensuring it is correctly centred and tightened. Select an appropriate drill speed for the metal type and apply steady pressure without forcing the bit. Use cutting fluid or lubricant when drilling harder metals to extend tool life and improve chip flow. Retract the bit occasionally to clear chips when drilling deeper holes.

Использование и уход

The bit should be inspected after heavy use and replaced if the cutting edges show significant wear or chipping. Store in a dry place to avoid corrosion.