Drill bit Proline 90811 — metal drill bit Ø8 mm, length 110 mm, 1 piece

The Proline 90811 drill bit is a single high-speed steel metal drill bit with an 8 mm diameter and a total length of 110 mm, supplied as one piece. Designed for drilling holes in steel and other metals, this bit is compatible with standard drill chucks and can be used in hand drills and drill presses for repair, construction and metal fabrication tasks. Its solid HSS construction provides the rigidity and wear resistance required for routine metalworking operations.

Advantages

This Proline metal drill bit combines a precise 8 mm diameter with a 110 mm length to reach deeper workpieces while maintaining drill stability. The high-speed steel material offers good hardness and heat resistance for cutting through various metals. Supplied as a single piece, it is ready for immediate use in both portable and stationary drilling tools. The geometry of the cutting edges helps maintain center accuracy and reduces the tendency to wander at the start of a hole.

Suitable for

• Drilling holes in steel and other ferrous and non-ferrous metals
• Repair and maintenance work using hand drills
• Drill press applications in workshops and fabrication shops
• Construction tasks requiring metal fastener holes

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 8 mm
• Total length: 110 mm
• Package quantity: 1 piece
• Intended use: metal drilling

How to use

Secure the drill bit in a compatible chuck, ensuring proper clamping and runout reduction. Select an appropriate spindle speed and feed rate for the metal being drilled; lower speeds and steady pressure are recommended for harder materials. Use cutting fluid or lubricant to reduce heat and extend tool life when drilling steel and other metals. Clear chips regularly and retract the bit periodically on deep holes to improve chip evacuation and prevent jamming.

Usage recommendations

Wear appropriate personal protective equipment such as safety glasses and gloves. Match the drill speed and lubricant to the workpiece material, and avoid side loads that could bend the bit. For repetitive or precision work, inspect the bit for wear and replace it when cutting performance deteriorates.