Drill bit ALPEN 09084065 (MPN 100906100) — metalworking/wood drilling accessory

ALPEN 09084065 drill bits are a set of forged nirosta cobalt cutting tools designed for drilling into metal and wood with handheld or stationary drills. The pack contains six single bits — 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm and 8.0 mm — each sharpened to provide reliable self-centering and efficient chip evacuation. Manufactured from cobalt-alloyed steel, these bits deliver higher heat and wear resistance than standard high-speed steel, making them suitable for demanding repair, maintenance and light fabrication tasks on common and tougher materials.

Advantages

The special sharpening geometry promotes optimal shaving evacuation and improves cutting accuracy while reducing walking at start-up. Cobalt material increases resistance to breakage and maintains hardness at elevated temperatures, enabling faster progress through hard and tough materials such as stainless and acid-resistant chrome-nickel steels. Supplied as individual forged tools, the bits are ready for immediate use in both handheld and bench drilling applications.

Suitable for

• Drilling stainless and acid-resistant chrome-nickel steels
• General metalworking and light fabrication
• Repair and maintenance tasks with handheld or stationary drills
• Drilling into common woods where a precise hole is required
• Pilot holes and through-holes in sheet metal and structural parts

Key specifications

• Material: nirosta cobalt-alloyed steel for improved heat and wear resistance
• Number of pieces: 6 single drill bits
• Included diameters: 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 8.0 mm
• Manufacturing: forged cutting edges with precision sharpening for chip evacuation
• Typical applications: metal and wood drilling with handheld and stationary drills

How to use

Select the appropriate diameter for the required hole and secure the drill bit in the chuck of a handheld or stationary drill. Use recommended spindle speeds and feed rates for the material being drilled: lower speeds for stainless and hard alloys, higher speeds for softer metals and wood. Apply steady, moderate pressure and allow the bit to cut; retract periodically on deep holes to clear chips and reduce heat build-up. Use cutting fluid when drilling metals to extend bit life and improve hole quality.

Usage recommendations

For best results when drilling stainless or chrome-nickel steels, use slow to moderate speeds with appropriate cutting lubricant, avoid excessive pressure, and ensure accurate alignment to benefit from the bits' self-centering geometry. Store bits in a dry place and inspect for wear or chipping before reuse.