Drill bit Bosch 8 mm × 100 mm, model 2608680291, carbide-tipped metal drill

Bosch drill bit 8 mm × 100 mm is a carbide-tipped metal drill designed to create precise holes in steel and similar materials. The 8 mm diameter and 100 mm overall length provide reach and stability for through-holes and deeper drilling tasks. Engineered with carbide cutting geometry, this drill bit maintains edge life under repeated use and delivers consistent hole quality when used in hand drills or drill presses for maintenance, repair and fabrication work.

Advantages

The carbide tip increases wear resistance and retains sharpness longer than standard high-speed steel bits, improving drilling efficiency in hard metals. The 100 mm length offers the depth needed for many installation and repair jobs while the optimized flute design clears chips effectively to reduce clogging and heat build-up. Compatibility with standard drill chucks makes the bit usable in a wide range of portable and stationary drilling tools.

Suitable for

• Drilling holes in steel and iron sheets
• Through-holes for bolts, rivets and fasteners
• Maintenance and repair tasks in workshops and job sites
• Metal fabrication and light to moderate industrial use

Key specifications

• Diameter: 8 mm
• Overall length: 100 mm
• Tip material: carbide
• Shank type: cylindrical for standard drill chucks
• Intended material: metal (steel, iron and similar alloys)

How to use

Mount the drill bit securely in the drill chuck, ensuring correct centering and firm tightening. Use appropriate cutting speeds and steady feed pressure for the metal being drilled; reduce speed for harder alloys and increase coolant or cutting lubricant to prolong tool life. For deep holes, periodically retract the bit to clear chips and allow cooling. Apply steady, controlled pressure without forcing the bit to avoid breakage and to maintain hole accuracy.

Usage recommendations

Wear appropriate personal protective equipment including safety glasses and gloves. Use cutting fluid for improved life and finish when drilling steel. Start with a pilot hole if high positional accuracy is required, and match drill speed to material hardness for best results.