Drill bit set Proline 79008K — 5 pcs, metal, Ø 0.8 mm, length 30 mm

Proline 79008K — 5 pcs metal drill bit set includes five high-speed steel (HSS) bits with a diameter of 0.8 mm and a length of 30 mm. Designed for precision drilling in thin metal sheets, electronic housings and delicate metalwork, these bits feature ground cutting edges and a 135° point angle with chamfering adjustment for reliable centring and reduced walking. The compact blister pack keeps the small-diameter bits organized and ready for workshop, repair or hobby tasks.

Advantages

The refined HSS material delivers good hardness and wear resistance for small-diameter metal drilling. A 135° point angle with chamfering adjustment improves centring and reduces the need for extensive centre punching, enabling faster hole starts. Ground edges ensure clean cuts and consistent hole quality when working with thin metals and electronic housings. The set of five identical 0.8 mm bits provides spare tools for repetitive or precision tasks.

Suitable for

• Drilling precise holes in thin metal sheets and light alloys
• Creating mounting or wiring holes in electronic enclosures
• Fine metalwork, model making and small repair jobs
• Workshop and hobby applications requiring small-diameter bits

Key specifications

• Material: refined high-speed steel (HSS)
• Diameter: 0.8 mm
• Length: 30 mm (overall length)
• Point angle: 135° with chamfering adjustment
• Cutting edges: ground
• Pack type: blister pack with five bits

How to use

Secure the workpiece and mark the drilling position accurately. For best results on thin metal and enclosures, use a centre punch or light pilot indentation, although the 135° point helps reduce walking. Install the 0.8 mm drill bit in a suitable hand drill or drill press chuck, ensure proper alignment and run the tool at appropriate speed for small HSS drills. Use light feed pressure, steady coolant or cutting oil when drilling metal, and clear swarf frequently to avoid overheating or bit breakage.

Usage recommendations

Use moderate spindle speed and light feed for 0.8 mm HSS bits, apply cutting oil for cleaner holes and longer tool life, and replace bits that show wear or chipping to maintain hole quality and safety.